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They are always developing.

注:develop有“發(fā)展”的意思,也有“沖?。z卷)”的意思。

更多英語(yǔ)謎語(yǔ)

Why do you think doctors are mean?

Why do carpenters think there's no such thing as gold in this world?

Why does time fly?

What can you tell from Peter's record card with extremely poor grades?