神兽金刚1林聪中毒:有一个Ariddle,帮我解解.

来源:百度文库 编辑:中科新闻网 时间:2024/04/28 07:14:56
I have a round face o a square face sometimes.
I have two hands sometimes.
I am everybody's friend,busy working all the time.
I have no mouth but I can tell you something from time to time.
Who am I?

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