the punctuation mark

It can be imagined, does not have the punctuation mark book not to exist.

可想而知，没有标点符号的书是不存在的。

The reason for the punctuation mark problems is very complicated. There are realistic reasons and historical reasons;

标点符号问题产生的原因很复杂，有现实原因，也有历史原因；

The punctuation mark is that the characters of our country write the indispensable important component, can express tone and word nature better.

标点符号是我国文字书写不可或缺的重要组成部分，能更好地表达语气和词语性质。