Example sentences of "[adv] [prep] long period " in BNC.

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1 The 20-mile chalk stream has dwindled to a trickle , and it dried up altogether for long periods in the past three drought years , after the drilling of six drinking water boreholes by the Thames Water Authority ( now the Thames Water company ) lowered the water table .
2 So for long periods a deep soil gathers at the foot of most slopes .
3 Seven days treatment with a cumulative dose of dexamethasone equivalent to 0.75 g prednisolone has been followed by osteonecrosis with the appearance of symptoms two years later , whereas most patients receiving steroids , do so for long periods and in higher doses without developing articular symptoms .
4 Inevitably , men pushed together for long periods of time became edgy and , by the time the prison was freed from the grip of the snow , three men had been knifed ( one of whom had lost a kidney ) and another had been beaten severely with a pool cue .
5 Some elderly people suffer from iron deficiency due to a very slight , and sometimes unrecognisable , blood loss from such conditions as piles , diverticulitis , hiatus hernia — and occasionally bleeding from the stomach , if they have been taking aspirin for rheumatism daily for long periods , and this may cause anaemia .
6 Her parents lived in another part of the country and her husband was in the army and away for long periods of time .
7 Obvious examples are travelling or living abroad , the husband having to be away for long periods , having to relocate , changing children 's schools at an awkward stage in their career , having to do a lot of company entertaining .
8 Even with Concorde I 'm away for long periods nowadays . ’
9 Some parents may already use a variation of this procedure by sending children to their rooms , but this is usually for long periods to get the children out of their way .
10 The most obvious clue to its presence is its movement , so in order for its camouflage to work it must be prepared to remain very still for long periods of time , or at least to alter its position very slowly and gently .
11 ‘ It is only recently that Robert Gordon 's University has opened up the field for people to do courses like this without having to leave home for long periods . ’
12 By contrast , the norm for curriculum change is for it to occur piecemeal and gradually over long periods .
13 He believed that the surface of the earth changed gradually over long periods of time , and saw that such changes would have an effect not only upon the physical environment to which living things were exposed , but upon the possibility of migration to new locations .
14 Are we meant to take it seriously ? premature babies are routinely taken from their mothers on the maternity ward into intensive care , or sterile areas , often for long periods and although their mothers might miss them , it would be thought sentimental to claim the opposite .
15 One of the difficulties in the procedure for the institutions was the constraint on planning of not knowing — often for long periods of time — when or whether courses would be able to begin , or even whether they would be allowed to continue .
16 These start off usually with a thin , gentle slithering sound of sliding boulders on the scree slope , which abruptly gives way to a much louder , roaring collapse as the main mass of rock falls away and hurtles downhill , and then afterwards minor falls continue intermittently for long periods .
17 It took the puritan fanatics to destroy these high spirits and mockery , which led inevitably to long periods of repression with its back-street prostitution of women and young boys , one of the many ‘ hidden ’ elements in Victorian society and , what was equally lamentable , the denial of the rightful place of women in society .
18 Eat self-blanching celery as soon as possible as it does not keep well for long periods .
19 The tool is also lightweight , compact , and has very low vibration levels , making it comfortable to use even for long periods .
20 She could do without large conscript armies to defend land frontiers and needed long-service troops who could be employed overseas for long periods .
21 Instead Garvey looked a jaded team and although they pressed hard for long periods , they could well have suffered a heavy defeat after a host of elementary mistakes gave Bann opportunities which should have been punished .
22 That the sunniest months are May and June is related to the tendency for anticyclones to develop in the Atlantic during these months bringing fine , clear weather to the islands , sometimes for long periods ( Manley 1948 ) .
23 Even as he uses the accommodation in Annexe A to manoeuvre Serafin into discovering for himself the waiting garret , so he is using the garret to manoeuvre him into rejecting all the proposed associates in Annexe B. Once Serafin has insisted on installing himself in the garret — against all reasonable advice — he is going to discover that the kind of staff he needs will be young and agile , with a good knowledge of the backstairs of Government buildings and an ability to duck their heads and remain inclined slightly forwards for long periods of time .
24 Big business or some trade unions , for example , seem to have exercised power consistently over long periods of time .
25 Discourse is more like a moving film , revealing itself in time — sometimes over long periods .
26 As the train chugged slowly forward , stopping inexplicably for long periods and even occasionally travelling backwards , Ludovico enjoyed the luxury of being able to examine his travelling companion openly while she slept .
27 The builder 's surveyor will either check the information supplied by the sub-contractor or measure the work carried out during the payment period , usually weekly , but occasionally for longer periods of up to a month .
28 Inset Left : Designed for deep sea work but often used on relatively shallow canals this diving gear allowed men to work safely underwater for long periods .
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