船上的生活已经使他变硬朗了。

Life on a boat had hardened him.

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太阳的热使黏土变硬。

The heat of the sun hardens clay.

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当前，科学家已经再次改善了稻子，这次的改善是通过使作物变硬。

Now scientists have improved rice once again, this time by stiffening the plant.

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当前，科学家已经再次改善了稻子，这次的改善是通过使作物变硬。

Now scientists have improved rice once again, this time by stiffening the plant.

youdao