| 词汇 | at the drop of a hat |
| 释义 | at the drop of a hat : very quickly and immediately毫不迟疑地；迅即 He says he's ready to help us at the drop of a hat.他说他随时准备给予我们帮助。 She loses her temper at the drop of a hat.她动不动就发火。 drop |
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