"behaved like an irresponsible idiot" "hasty and irresponsible action"
例句
用作形容词(adj.)
Nothing can excuse such irresponsible behaviour.没有理由可以为这样不负责任的行为辩解。
But he turned out to be immature and irresponsible.但结果他是个不成熟和不负责任的人。
Why can't you just sit and play mah-jongg with the rest of us instead of going out and cavorting with your irresponsible brothers?你为什麽不坐下来和我们这些人打麻将,而非得出去和你那些不可靠的的弟兄鬼混呢?