nonrestrictive

基本解释

Nonrestrictive relative clauses are set off by commas.
以及它的用法，有没有书可以参考？
These nonrestrictive units had concrete floors on an interior steel frame.
这些非抗震单元在内部为钢构架上是水泥地板。
When a nonrestrictive clause a ears 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。
In the nonrestrictive sentence, the store honored all the complaints, all of which were less than 60 days old.
而在非限制性从句中，商店处理了所有的投诉，这些投诉都是60天内发生的。
Place proper punctuation around nonrestrictive clauses, but do not place punctuation around restrictive clauses.
在非限制性从句中可以使用标点，但在限制性从句中则不可以使用。