Loose cannon
01
不可预测的因素, 无法控制的人
a person who has lost their sanity, often momentarily
Idiom
例子
Do n't rely on him for critical tasks; he 's proven to be a loose cannon with his unreliable actions.
不要依赖他来完成关键任务；他的不可靠行为证明他是个难以预测的人。
不可预测的因素, 无法控制的人
Idiom
