形容詞 unable:

1. (usually followed by `to') not having the necessary means or skill or know-how
2. (usually followed by `to') lacking necessary physical or mental ability
3. lacking in power or forcefulness
   同義詞：ineffective, ineffectual

1. The Finance Director sends her apology and is unable to attend the meeting.
   財(cái)務(wù)董事派人帶話說(shuō)，她因不能出席會(huì)議而向大家道歉。
2. The interruption of electricity made us unable to do anything.
   電力的中斷讓我們什么也不能做。
3. I'm stuck on (ie unable to answer) the second question.
   我在第二個(gè)問(wèn)題上卡住了(不會(huì)回答).
4. A little baby is unable to walk or talk.
   嬰兒既不會(huì)走也不會(huì)說(shuō)。
5. We are as yet unable to say when the train will arrive.
   我們還說(shuō)不上火車什么時(shí)候到達(dá)。
6. I am unable to cycle to school because my bicycle is broken.
   我不能騎車上學(xué)，因?yàn)槲业淖孕熊噳牧恕?/div>