When a nonrestrictive clause appears at the end of a sentence, place a comma before it and a period after it.
When a nonrestrictive clause appears at the end of a sentence, place a comma before it and a period after it.
当非限制性成分出现在句末时，在它前面加逗号，后面加句号。
When a nonrestrictive clause appears at the end of a sentence, place a comma before it and a period after it.
当非限制性成分出现在句末时，在它前面加逗号，后面加句号。