jump the gun

含义

to act too soon, before the right moment

时机未到就过早行动.

例句

1. 1We jumped the gun by booking the hotel before our leave was approved.
2. 2Let's not jump the gun; wait until the test results are back.
3. 3Tom jumped the gun and told everyone he'd got the job before the contract arrived.
4. 4Isn't it jumping the gun to buy baby clothes before the first scan?
5. 5The shop jumped the gun with its Christmas decorations; they were up in early September.

语法

只有 jump 变化形式：jumped、jumping。the gun 保持单数，并保留 the。