Example sentences of "[verb] over a [adj] period " in BNC.

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1 petals strongly and sweetly perfumed , retained over a long period when dried , used in perfumery , potpourris , for perfuming writing paper .
2 A die could survive over a long period of time .
3 Together with radiometric age determinations of the most recent eruptive episode , such reconstructions enable estimates to be made of the amount of material eroded over a known period of time .
4 The broad branching heads of large , ragged yellow daisies appear over a long period during summer ; a large patch is a magnificent spectacle .
5 Out of a thousand cases reported in United States waters over a five-year period , only two resulted in death .
6 Hatching occurred over a two-month period commencing at the end of June , with most juveniles emerging in mid-July .
7 And notwithstanding the invariable belief of these coaches that their own programme-of-the-moment is writ large on a tablet just descended from Heaven , there are no absolutes about which kind of exercises are best to get you fit over a short period of time .
8 This is an acquired skill which develops over a long period .
9 Young children do imitate the aggressive acts of televised models as much as live models ; furthermore , this effect persists over a considerable period of time and is particularly pronounced when the aggressive model is portrayed as successful .
10 The next section between Culver Street and Gigant Street and Guilder Lane and Pennyfarthing Street could have seen little change over a long period .
11 The examples all have the same structure : a well-defined quantity is recorded at successive equally-spaced time points over a specific period .
12 There are two broad categories : ( 1 ) where the object is to generate more work by some system of cross-referral in particular fields , though such arrangements are difficult to sustain over a long period if member firms wish to retain their independence and separate profitability .
13 One is that the abuse is part of the way two people communicate over a long period of time .
14 ( Martial arts are a way of life — skills learnt and practised over a long period , used to tune the mind and body to a state of superb readiness .
15 Under the proposal Poland would allocate over a twenty-year period the zloty equivalent of the hard currency involved to set up and develop schemes to reduce pollution and improve the environment in Poland .
16 And because one would share with neighbours , it was rather spaced out so that people could benefit over a longer period .
17 The rationale , however , for that is clear : while insurers are willing to concede that accidents will happen , events developing over a long period of time because of a lack of concern for the potential hazards should not be allowed to .
18 Project B remits larger cash inflows spread over a five-year period as opposed to the three years of cash inflows from Project A. Discounted cash flows would provide a rational basis for comparing these two projects on an equitable basis .
19 Sometimes this happens over a long period , as a person finds himself constrained to attend a Christian place of worship , or drawn to read the Christian scriptures .
20 For monthly savings , Mr Murrell recommends Friendly Society plans over a 10-year period because the money grows tax free .
21 The disparities in overall changes in assumed unit costs over a three-year period are quite remarkable .
22 The second deterrent is a financial one : course participants do not have to pay fees , since the course itself is financed by the DES , but they do have to fund their living costs over a ten-week period — a not inconsiderable financial commitment .
23 ‘ The largest single category of problems mentioned , however , was depression and anxiety attributable to the stresses of caring over a prolonged period of time . ’
24 Unlike groups in laboratory studies , the work group is not created and then disbanded permanently ; it often survives over a long period of time .
25 The church began in late Saxon times and developed over a long period , finally being made redundant in the 1960s , when part of it collapsed .
26 3 Can you give us an approximate idea of sales you 'd be expecting over a three-year period ?
27 Using data collected over a 2-year period from plots under a variety of management techniques , ranging from maize cultivation to a range of pasture grasses , they report that soil erosion and nutrient losses were greatest from maize ( Zea mays ) and guinea grass ( Panicum maximum Jacq. ) plots .
28 A good game of tennis , badminton , hockey , netball , or football , for instance , all involve a great deal of running over a prolonged period of time .
29 Following the primary attack , there may be no further episodes , or the disease may recur over a long period , in some cases several years .
30 Ectothermic reptiles have a body temperature that tends to vary over a 24-hour period , and hence seem unable to support a large brain .
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