“我是什么变化？”他柔声问道。

'How have I changed?' he asked silkily.

《牛津词典》

大象听到远处动物的警报声，情绪突然发生变化。

The elephant had heard the distant alarm calls of animals and her mood suddenly changed.

youdao

可能是音高的变化使得乞食声没那么能打动人，获得的食物也随之变少，狐獴没办法就只好自谋生路。

This change in pitch might make their begs less persuasive, eliciting less food and leaving the juveniles no option but to forage on their own.

youdao