9) at one time从前某个时期
e.g. At one time, we met frequently.
at a time：每次，一次
e.g. You can borrow only two books at a time.
10) attach to：属于，归因于
e.g. No blame attaches to him.
attach oneself to：参加，加入
e.g. He attached himself to the group of climbers.
以上就是10组易混淆雅思听力短语解析的相关介绍，考生朋友在平时的复习过程中也应该注意收集，最后祝大家都能考出好成绩。