Nonrestrictive
a. 非限制性的
🗣️ 情景例句
What, Harry?
什么 ，Harry？
Love is sweet in the beginning but sour in the ending.
爱情始甜而终苦。
He waited until someone new joined the company and then began to steal.
他等待有人刚加入公司后才开始偷窃。