| 短语 | catch sb by surprise / catch sb off guard |
| 释义 | catch sb by surprise / catch sb off guard also catch sb napping / unawares, catch sb on the hop BrEto do something or to happen when someone is not expecting it or prepared for it使某人吃惊/措手不及（猝不及防）:•Her question caught him off guard.她的问题让他猝不及防。 |
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