脱口说英语口语校园习语大全
S-2:seal someone's lips 不让某人说话
A:How about your exam? A:你考试考得怎么样？
B:Sorry, I can't tell you. B:抱歉我不能告诉你。
A:Why not? Are your lips sealed? A:为什么？你的嘴被封住了吗？
B:No. Just because I failed in the exam. B:不，只是因为我考得不好。