托福阅读100个核心词汇
在托福阅读中，词汇是最重要的问题，而这个也主要考平时的积累，那么接下来就和出国留学网来看看托福阅读100个核心词汇。1. a couple of 两三个，几个Although he thought of the key idea in 1951， the first maser was not completed until a couple of years later.2. account for 解释Variations of clay composition and the temper...