商务英语 BEC 高级听力必备短语（4）1. benefit concert 慈善音乐会 We need to let everyone know about the benefit concert, but we don’t have much money for advertising. 2. busy signal 占线 I’ve been calling David for the past half hour, but I keep getting a busy signal. 3.betwe...

时间:2025-04-11 19:43栏目:高等教育