Example sentences of "[coord] at [adv] four [noun] " in BNC.

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1 The young hedgehogs are reared by their mothers , and at about four weeks of age they may be seen foraging with her in the darkness .
2 The British move follows a request from Washington and at least four Hercules aircraft are expected to take part .
3 The distance there and back is eight miles and at least four hours should be allowed for comfort .
4 Values of the eicosanoids leukotriene B 4 ( LTB 4 ) , thromboxane B 2 ( TXB 2 ) , and prostaglandin E 2 ( PGE 2 ) were measured before radiotherapy , at the end of radiotherapy , and at least four weeks after radiotherapy .
5 Since a python 's skin begins to deteriorate in quality once it has grown to about fifteen feet the largest are left alone , which is just as well as each one must be caught at night , alive and by hand , with a lamp to attract them from their lairs , and at least four men to get them into the sack afterwards .
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