他的进步很明显,大家都为他高兴。

His improvement is noticeable, and everyone is happy for him.

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His improvement is noticeable, and everyone is happy for him.

improvement 是名词,由动词 improve(改进、提高)加上名词后缀 -ment 构成,表示"改进、进步"的过程或结果。

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