单词off是一个常见的词汇,并且有较多的词性。今天,我们先看一下off做副词的用法。 首先,我们off做副词都有哪些意思。 1、I called him but he ran off.我喊
PHRASAL VERB If one object or area is sealed off from another, there is a physical barrier between them, so that nothing can pass between them. 封闭