小鸡们花了21天才从蛋里孵化出来。
The chicks took 21 days to ___hatch from their eggs.
船员们通过甲板上的舱口将物资运到船舱里。
The sailors carried supplies into the hold through the ___hatch on the deck.
小鸡从蛋里孵出来需要21天。
Chickens take 21 days to ___hatch from their eggs.
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