Example sentences of "[verb] [adv] for [adj] periods " in BNC.

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1 Food , of course , remains a topic of passionate concern — the focus of minor complaints and disagreements which rumble on for long periods — and outbursts of contentment which are extremely short-lived .
2 Tranquillizers should be prescribed only for short periods to help patients through crises where their levels of anxiety are such that their coping ability is grossly impaired .
3 Kitchen floors need to be tough enough to withstand all sorts of spills , grease and damp , comfortable enough to stand on for long periods , and handsome to look at .
4 Although particulate traps can be made to work effectively for short periods under favourable conditions there is some way to go before they are reliable enough for the rough and tumble of ordinary operating conditions .
5 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 .
6 Even when the soil is virtually dry , spadefoot toads can remain underground for prolonged periods by maintaining their blood concentration at the correct level .
7 As far as chartered accountant trainees are concerned , Mr Jones argues , ‘ you have all the aggravation of training them on high salaries and the disruption to a small office with their going off for long periods of study leave , and at the end you do n't keep them .
8 Eat self-blanching celery as soon as possible as it does not keep well for long periods .
9 ‘ 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 . ’
10 In terms of legitimacy with the general public such a strategy could also be effective , since the public can be reassured that the really ‘ serious , offenders about whom they are most concerned will be kept locked up for long periods .
11 Both reports constitute post hoc analyses of data on several thousand patients followed up for varying periods at regional hypertension clinics .
12 The tool is also lightweight , compact , and has very low vibration levels , making it comfortable to use even for long periods .
13 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 .
14 She could do without large conscript armies to defend land frontiers and needed long-service troops who could be employed overseas for long periods .
15 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 .
16 But those who stay only for short periods of weeks or months are much more likely to be suffering from serious mental disorder than long term residents .
17 Others went off for extended periods as migrant ( dekasegi ) workers or severed their ties with the land altogether .
18 India was largely cut off for long periods , and its under-developed arms and textile industries were required to supply substantial quantities of ammunition and tents to British forces in the Middle and Far East .
19 Within five years , half of all non-custodial parents ( usually fathers ) have remarried , creating some full-time and some part-time step-families where children visit or stay overnight for short periods ( Leete and Anthony , 1979 ) .
20 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 .
21 Practise only for short periods , never when you are tired .
22 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 .
23 avoid sitting down for long periods
24 Avoid sitting down for long periods without a break .
25 Anyone sitting down for extensive periods ( as we all had to do in our school days ) would have to tense many of the body 's muscles in order to sit up straight .
26 Class sizes are generally larger than PTRs , because not all teachers actually teach ( heads , for instance , spend most of their time on administrative work ) , because marking and preparation duties restrict direct contact hours with pupils , and because sometimes classes are combined or split up for various periods .
27 The human brain , particularly memory , works best for concentrated periods of about forty to fifty minutes .
28 There have been months when he has n't found any work at all and so he returns home for short periods .
29 Even if the majority of exercises employed are basically the same , the results will vary according to whether you work hard for short periods or do easier work for a longer stretch .
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