I don't know why! We use common language, we are brother's and sister's so we are a family why oneself person dozen oneself person!

我为什么不知道！我们使用共同语言，我们是兄弟的和姐妹的，因此我们是一家人为什么要自己打自己！

youdao

English is not the easiest language to learn—most of its common verbs are irregular and it has a large vocabulary—at least 200,000 words are in common use.

英语不是最容易学的语言——它的大多数常用动词都是不规则的，而且它的词汇量很大——常用单词至少有20万个。

youdao

It is common for speakers of English to switch from one or other variant to a use of language more appropriate for work, school or international communication.

对于英语使用者来说，从一种或另一种变化转向更适合工作、学校或是国际交往的语言运用，这种做法很常见。

youdao

By "difficult," it is meant, I think, well, first of all that it is in some sense set apart from common speech, as a specialized and highly self-conscious use of language.

艰深“的意思，我认为，首先，某种程度上它是和平时谈话有所不同的，专业性极强，对语言运用自知也很高。

耶鲁公开课 - 现代诗歌课程节选

Foster would learn from those too, but his immersion in common language and use translates into a feeling of rightness, which works as completely in small structures as in large.

CNN: ASIANOW - TIME Asia