playing 是play的现在分词,前者一般用于进行时态,或非谓语动词,后者用于一般现在时(主语除除第三人称单数外),如He is playing baketball .There are many students playing basketball over there .
playing 是play的现在分词,前者一般用于进行时态,或非谓语动词,后者用于一般现在时(主语除除第三人称单数外),如He is playing baketball .There are many students playing basketball over there .
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