Example sentences of "[vb -s] been known for a [adj] " in BNC.

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1 The toxic nature of some animals has been known for a long time and man has utilised their venoms and poisons for various purposes .
2 The effect of early experience on the mating preferences of birds and mammals has been known for a long time .
3 It has been known for a long time , and has led to the more modern practice called ‘ foliar feeding ’ , in which the purpose is not so much to correct deficiencies , but to encourage a boost in performance , yield and so on by spraying major element solutions on to the leaves in the same way .
4 It has been known for a long time that , partly due to their immense size , elephants can hear much lower sounds than we can .
5 It has been known for a tough roadman-sprinter to control the race in these big hills , not to lose much time on the Ballon , then rejoin the leading group , dominate them on the long downhill run into Mulhouse and win the stage .
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