Translation of "Punctuation" in Chinese

An exclamation mark is a punctuation mark.

感叹号是标点符号。

You must be more careful about spelling and punctuation.

你得要更注意拼字和標點符號。

The sentences "Let's eat grandpa." and "Let's eat, grandpa." are only one proof that punctuation can change a lot.

"我們吃爺爺吧。" 和"我們吃了吧, 爺爺。" 這兩個句子可以證明標點符號能讓句子有很大的不同。