irresponsible
adj
(of people, actions, etc) not showing a proper sense of responsibility (指人、 行为等)不负责任的, 没有责任感的
an irresponsible child 没有责任感的孩子* irresponsible behaviour 不负责任的行为
It is irresponsible of you not to prepare students for their exams. 你不帮助学生准备考 试就是不负责. Cf 参看 responsible 4.
My computer was infected by a virus, I guess since I didn't have firewall installed.
我的电脑受到病毒感染了,我想是因为我没装防火墙。
Money is the sinews of war.
无钱莫打仗。
Some of the bigger firms are engaged in researches which are of such general and fundamental nature that it is a positive advantage to them not to keep them secret.