不久前，他发现蓝知更鸟在枯树上筑巢，而这些枯树往往会被人们砍去，于是他开始为这些鸟制作蓝知更鸟箱，以拯救它们。

Not long ago, he found that the bluebirds were nesting in the dead trees which were often cut down, so he began to make bluebird boxes for the birds in order to save them.

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这篇稿子太长，得砍去一半。

The article is too long and should be cut down by half.

《新英汉大辞典》

她用刀猛地向强盗砍去，但没砍着。

She chopped at the robber with her knife, but missed.

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