我们吃饭时不能发出任何声音。

We couldn't make any noise when eating.

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普罗文认识到，黑猩猩之所以不能发出一连串的“呵呵呵”声音的原因，在于它们在呼气或吸气时无法发出一个以上的音节。

Provine realized that the reason chimps cannot emit a string of "ho ho ho" is that they cannot make more than a single sound when they exhale or inhale.

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领导者不能发出混杂不清的信号。

Leaders can't send conflicting signals.

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They're producing electrical signals in the brain they're not recording from the brain, but it's not that big of a difference.

它们只能向大脑发出信号,而不能记录反馈大脑的信号,但是这两者技术要求差别不大

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Would you please stop making that noise?

你能不能不要再发出那种噪音了？

Would you please 实战 - SpeakingMax英语口语达人