不要讲话是no talking 还是not talking

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NO加动词ing所以是NO talking
No talking .因为no 后加ing 形式。
看情况，句中是not，句首或单独一句是no
不要讲话是no talking 还是not talking

祈使句用 No + 动名词 或者说 No +动名词构成否定祈使句

例如: No parking here (这里不能停车/ 禁止停车 )

不要讲话，属于祈使句，因此需要用No talking

祈使句否定另外一种 Don't +动词原形

Do not leave your seat until the plane is airborne.
机升空时不要离开座位。

Don't talk in class
不要在课堂上讲话

not +非谓语动词 (用作句子的状语）

Not wishing to antagonize her further, he said no more.
他不愿惹她更生气，便不再说话。

The teacher asked us not to be late for school
这个老师要我们不要上学迟到.
not +谓语动词

He's not very good at arithmetic.
他不太擅长算术。

He didn't always win the arguments, but he often was right...
他并非在争辩中总是能赢，但他经常是对的。

Eva was adamant that she would not come.
伊娃坚决不来。