Example sentences of "[noun sg] [be] [verb] for long [noun] " in BNC.

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1 They have an average life of 5,000 hours and are , therefore , much more economical to use in places where high levels of light are needed for long hours at a time .
2 With the wind in their favour Ballymena dominated the first half being encamped for long spells in the Hawick territory .
3 The campaign was fought for long periods with all the strategic sense of an exhausted boxer launching haymakers from the ropes .
4 The term programming is used for long term changes in the body 's structure , physiology , or metabolism brought about by environmental influences acting at critical stages of early life .
5 In medieval Europe and Islam , for example , the monetary stability of the coinage was adjudged paramount and consequently the same design was retained for long periods to maintain public confidence and implicitly offer reassurance about the unchanging quality of the coinage ; we have already noted in Chapter 2 the same sort of attitude in Athens during the fifth and fourth centuries BC ( see figs. 9 and 3 ) .
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