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

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1 The inhalation of iodine-131 could cause thyroid cancer in people as far away as 24 km , and there is a 20 per cent probability that over a period of 10–20 years between 1000 and 10,000 people could develop thyroid cancer ( less than 10 per cent of these would be fatal cancers ) .
2 The government announced on Nov. 26 that over a period of three years it intended to cut 122,000 government jobs — approximately one fifth of state employees — at an estimated saving to the state of the equivalent of US$1,500 million .
3 A programme of restoration back to full working order followed and over a period of 18 months , it was stripped , restored and rebuilt to its present immaculate condition .
4 In Woodrow , it was held that affray is a continuing offence , so that where an indictment charged the defendants with a single offence and particularised several incidents that had occurred at different places and over a period of several hours , the indictment was not bad for duplicity .
5 According to bogus sexologist Dr John R Brinkley , goat glands held the secret to combating male impotence and over a period of twenty years he amassed a fortune of more than $12 million administering them to 16,000 men worried about their sexual inadequacies .
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