The egg develops its shell while still inside the mother.

还在母体中的时候，卵就已经发育出外壳了；

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The child got egg on his face while eating.

这小孩吃东西时把蛋沾在脸上。

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While your egg is boiling, gather your materials.

在煮鸡蛋时，收拾好你的材料。

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While your egg is boiling, gather your materials.

在煮鸡蛋时，收拾好你的材料。

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