at the drop of a hat

毫不迟疑地，一有机会就; 动不动

1. 马上：at stake 在危险中 | at the drop of a hat 马上 | at times 有时;偶然

2. 动不动就：fly into a rage 暴跳如雷, 大怒 | at the drop of a hat 动不动就... | crack down on... 镇压..., 打击...

3. 马上, 随时; 很乐意地 一有机会就...; 动不动就：as black as my hat 漆黑的 | at the drop of a hat 马上, 随时; 很乐意地 一有机会就...; 动不动就... | at the drop of the hat 马上, 随时; 很乐意地 一有机会就...; 动不动就...

4. 刻不容缓：Ask for the moon 想入非非 | At the drop of a hat 刻不容缓 | Ax to grind 花言巧悟哄骗他人

1. at the drop of a hat是什么意思

1. Some women can get pregnant at the drop of a hat while others may try for years to conceive.

2. Thus they are volatile and shift to another foreign exchange market at the drop of a hat in response to changes in relative interest rates.