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

但有趣的是，移去了这些令人讨厌的声响，刮擦声也产生了一点点变化。

But, interestingly, removing the noisy, scraping part of the sound made little difference.

youdao

她随着发动机声的每一变化而越来越清醒了。

At each change in engine sound she grew more wakeful.

youdao

她随着发动机声的每一变化而越来越清醒了。

At each change in engine sound she grew more wakeful.

youdao