船长的眼睛向上一瞟作为回答，那眼光的锐利与意味深长，除了前面提到的不能发音的中国语言外，其他语言都不能形容。

The acuteness and the significance of the Captain's eye as he cocked it in reply, no words short of those unutterable Chinese words before referred to could describe.

youdao

就连我们最好的歌唱家，也不能隐藏起发音时的心力；他们竭尽全力地唱出高音或者低音，即使超出了它们的音域，也不感到羞愧。

Even our best singers cannot hide their sense of effort; nor are they ashamed to bring out, as best they can, top notes or bass notes beyond their proper register.

youdao

我不能确定到底是骨头的名字还是语法学家的“经文”更难发音，我想应该是后者要难得多吧。

I am not sure which of them, the names of the bones or the sutras of the grammarian, were the more jaw-breaking. I think the latter took the palm.

youdao

That's not good enough, and so the repetition in the plot reinforces the repetition of the sound in question.

由于她总是不能正确地发音,这样一来情节的重复，就加强了声音的重复。

耶鲁公开课 - 文学理论导论课程节选