We mostly use interjections in speech, not in written language.

我们常常会在演讲中使用感叹词，而不会在写作中使用。

In speech it would be something like that - in the written language, less.

在口语中应该是这样的 —— 在书面语中更少一些。

In speech it would be something like that – in the written language, less.

在口头语言其所占比例就和那差不多——在书面语言中，其所占比例要少些。

Students write the language while simultaneously speaking it out loud.

学生在抄写语言同时大声读出来。

And written language played an important role in widening the gap between classes.

而且书写也拉大了阶级之间的差距。

Punctuation is everything in a written language except the actual letters or numbers.

在书面语中，标点是实意词汇或数字之外最重要的部分。

Chinese is the most concise written language in the world, so we'd use less paper.

汉语是世界上最简洁的书面语言，这样我们就能少用很多纸张了。

The techniques we pioneered can be extended to many other written and unwritten languages.

我们开创的技术可以扩展到许多其他书面和非文字语言。

A spelling reform would weaken the stability of the written language and thus undermine its unity.

拼写改革将削弱书面语的稳定性，从而破坏其统一性。

Since they now had written language, they could write out law codes, specific punishments, and crimes.

因为他们现在有了书面语言，他们可以写出法典、具体的惩罚和罪行。