The Finance Director sends her apology and is unable to attend the meeting.
财务董事派人带话说, 她因不能出席会议而向大家道歉。
The interruption of electricity made us unable to do anything.
电力的中断让我们什么也不能做。
I'm stuck on (ie unable to answer) the second question.
我在第二个问题上卡住了（不会回答）.
