His behaviour was very irresponsible; he might have hurt somebody.
＂他的所作所为很不负责，他可能已经得罪了一些人。＂
Some people felt that the Prime Minister should have been impeached for his irresponsible actions.
有些人认为，首相早就应该为其不负责任的行为而受到弹劾。
Her irresponsible behaviour cost her father many sleepless nights.
她那不负责任的行为使她父亲许多夜不得安眠。
