Cut it into two exact halves.

把它切成准确的两半儿。

《新英汉大辞典》

The windblades come to existence by cutting the bamboos into halves. The ends of the bamboos are cut angularly so the lamp lights downwards to the passer-bys and its motion can be seen from afar.

将一节竹子劈去一半就成了风叶，把竹子的末端做成向下的倾角，这样灯光就能向下照射为路人照明，也能从远处看到。

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Wash and cut large straw mushrooms into halves. Make a cross cut on the stalks of small ones.

草菇洗净，大粒折切开边，小粒的在菇脚鎅一十字。

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