如果这个假设成立的话，那么各种特别的脸部表情和声音就只会在特殊的情境下才能发生，而且在物种群甚至是物种之间都是一致的。

If that were true, particular sorts of facial and vocal expression would occur only in particular contexts, and that this would be consistent across groups and even species.

youdao

如果这个假设成立的话，那么各种特别的脸部表情和声音就只会在特殊的情境下才能发生，而且在物种群甚至是物种之间都是一致的。

If that were true, particular sorts of facial and vocal expression would occur only in particular contexts, and that this would be consistent across groups and even species.

youdao