Example sentences of "about ten [conj] twenty " in BNC.

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1 that start with a C you learn maybe about ten or twenty that start with a K and you say well if it 's not one of these I do n't know I 'm gon na s try it with a C.
2 This is much longer than the age of the universe , which is only about ten or twenty thousand million years ( 1 or 2 with ten zeros after it ) .
3 At about ten or twenty thousand million years ago , it would have a minimum size , which was equal to the maximum radius of the history in imaginary time .
4 Is that a sort of follow-up of the God is dead school of theology of about ten or twenty years ago ?
5 A mosquito probably registers about ten or twenty decibels , and this could be very annoying if you were trying to sleep and one was buzzing around you , but in our trade we 're normally talking about a level of perhaps sixty or seventy decibels which is tolerable and the sort of noise perhaps we 're making at the moment .
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