Example sentences of "[noun] [prep] 20 years [unc] " in BNC.

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1 When this risk is compared to other cancer risks , it is found that the lifelong risk from passive smoking is more than 100 times higher than the estimated effect of 20 years ' exposure to chrysotile asbestos normally found in asbestos-containing buildings [ 5 ] .
2 The charges of gross embezzlement and abuse of power carried a maximum sentence of 20 years ' imprisonment , but Zhivkov , aged 79 , looked unlikely to suffer this fate since Bulgarian law did not permit anyone over 80 to be sent to prison .
3 The proviso whereby it was possible for some individuals to enjoy an enhanced accrual scale to qualify for full pension benefits after 10 years of service was altered in the 1987 Budget — with a new period of 20 years ' service being required .
4 Yet not too long afterwards , it was suggested that for a salesman with 20 years ' continuous employment , three years was an appropriate improvement period ; many would think that to be erring on the high side .
5 Rita is a machine knitter of 20 years ' standing who has taught many techniques of the craft .
6 We regard murders committed in this country by terrorists as deserving a minimum of 20 years ' imprisonment for those people .
7 A ‘ baby boom ’ now could provide a large number of teachers in 20 years ' time ; but if in 15 years ' time , the birth rate were to be low , there would be insufficient children for these teachers to teach ( unless pupil/teacher ratios were to be changed ) .
8 The case being considered during the next few weeks will be the first alleged breach of an environment directive by this Government in 20 years ' membership of the European Community — and I am proud of that .
9 On Sept. 9 former Emperor Jean-Bedel Bokassa had his sentence reduced from life to 20 years ' hard labour .
10 With the methodical professionalism of a former detective sergeant with 20 years ' experience in London 's Metropolitan police , Jones had made a full note of a conversation in which Connelly asked , ‘ Have you considered a bag switch at Frankfurt ? ’
11 At the moment it is theoretically possible for a qualified nurse with 20 years ' break in service to be put in charge of an acute ward , and to take responsibility for the management and allocation of staff , even though she may not have any recent or relevant experience .
12 PC Anderson , a 40-year-old officer with 20 years ' experience , warned her not to report the incident , saying he knew where to find her and could arrest her for soliciting , the court was told .
13 Not when — if , perchance , Labour Members were in that position in 20 years ' time , would they be prepared to have the whole system of assessing and adjudicating upon genuine claims destroyed by the campaigns that are being organised in some parts of this country ?
14 The new flexi-age retirement provision is unlikely to help you if you move to a new job , since it only applies to employees of 20 years ' standing .
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