她并不是以英语为母语的人士。

She is not a native speaker of English.

youdao

如果你的语调和节奏错误，而你又讲的很快，英语为母语的人士很难听懂你说的话。

If you speak too quickly, and with the wrong intonation and rhythm, native speakers will have a hard time understanding you.

youdao

你 要记住，只有一小部分以英语为母语的人士，才知道超过 20%的语法规则。

Remember that only a small fraction of English speakers know more than 20% of all the grammar rules.

youdao