常見例句Nonrestrictive relative clauses are set off by commas. 以及它的用法,有沒有書可以參考?These nonrestrictive units had concrete floors on an interior steel frame. 這些非抗震單元在內部為鋼構架上是水泥地板。When a nonrestrictive clause a ears at the end of a sentence, place a comma before it and a period after it. 當非限制性成分出現在句末時,在它前面加逗號,后面加句號。In the nonrestrictive sentence, the store honored all the complaints, all of which were less than 60 days old. 而在非限制性從句中,商店處理了所有的投訴,這些投訴都是60天內發(fā)生的。Place proper punctuation around nonrestrictive clauses, but do not place punctuation around restrictive clauses. 在非限制性從句中可以使用標點,但在限制性從句中則不可以使用。When a nonrestrictive clause a ears in the middle of a sentence, place commas around it. 當非限制性成分在句子中間出現時,應當在它前面和后面加逗號。 返回 nonrestrictive