jump the gun
例句
用作不及物动词(vi.)- He was disqualified from the race for jumping the gun.他由于赛跑时偷跑而痛失了参赛的资格。
- He jump the gun and open the test before the teacher say to start.在老师说开始前，他行动过早，先翻开了试卷。
- They jumped the gun by building the garage before permission had been given.他们未得许可就抢先盖了汽车房。
THE END
