loose cannon

剑桥词典

someone who behaves in an uncontrolled or unexpected way and is likely to cause problems for other people
喜歡惹是生非的人，愛招惹麻煩的人；擧止無法預料的人
He's seen as something of a loose cannon by other team members . 在其他隊員看來，他是個有點愛惹麻煩的人。 返回 loose cannon