Example sentences of "more than about a " in BNC.

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1 However , no more than about a dozen viruses have been produced on a commercial scale and only a few of these have been used on more than a few hundred hectares per year .
2 If you speak for more than about a fifth of the total time this is not appraisal , it 's lecturing , or worse , pontificating .
3 ‘ They never seem to last more than about a week . ’
4 These advantages appear to me to outweigh the disadvantages identified by Mr of there being more outsiders in the family household , possibly homesick and unhappy carers who are not living in their own homes , but at the establishment and the trouble and worry to the of what would be not infrequent , recruitment of new carers for Mrs , I hope perhaps a trifle pessimistically thought that on average carers would not spend more than about a year of course , some longer , some shorter , because such carers necessarily had to be fairly young , fit , strong people and the stresses and strains of the er the whole business she thought would lead to reasonably rapid turnover , not the emergence of long-term carers who might stay for a number of years , er , as I say I 'd rather hoped that she may be unduly pessimistic about that , but , that , I accept what she says about it .
5 Even when this is used , it is not advisable to expect a safe endurance of more than about an hour .
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