我的语法学习在提高，但是我觉得习惯用语和有用词语很难学。

My grammar is improving, but I find idioms and useful expressions hard to learn.

youdao

阅读的时候在本子上记下有用词汇和短语，再尝试用它们造句。

Keep a notebook with useful words and phrases that you find when you're reading, and try using them in your own sentences.

youdao

除了前面所说，本附件中所有用词和表述与协议中的用词和表述意思相同。

Save as aforesaid, words or expressions contained in this Attachment shall, bear the same meanings as in the Agreement.

youdao

And shielding is a little bit of a misnomer because it's not actually that's the electron's blocking the charge from another electron, it's more like you're canceling out a positive attractive force with a negative repulsive force.

屏蔽有一点点用词不当,因为它事实上不是,电子阻挡了来自另一个电子的电荷,它更像你在用一个负排斥力，抵消一个正吸引力,但是屏蔽是考虑这个问题,的很好的方式。

麻省理工公开课 - 化学原理课程节选

Frost has made a suggestive choice of words.

他有选择性地用词。

耶鲁公开课 - 现代诗歌课程节选