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- Biologists are unable to explain why frogs are dying. 生物學家不能解釋為什麼青蛙死亡。
- Experts are unable to explain why the whales beached themselves. 專家無法解釋為什麼鯨魚令自己擱淺。
- Be unable to express yourself clearly. 不能清晰地表達自我。
- Psychiatrists had been unable to find anything of significance to explain his actions. 精神科醫生一直無法找到任何有意義的東西來解釋他的行為。
- Once plentiful in the river the sturgeon population had dropped below 40000 and scientists were unable to explain the die-offs of mostly female fish. 一旦大量的河流，鱘魚人口已經跌破40000，科學家無法解釋死亡取捨的多數是女性魚類。
- She was so angry as to be unable to speak. 她氣得連話都說不出來了。
- For certain reasons I will be unable to attend the meeting. 因為某種原因，我不能出席這次會議。
- Mrs Biggs is ill and will be unable to take you today. 比格斯夫人病了，今天不能給你們上課了。
- The doctor was unable to explain such large-scale and systemic changes in the body in terms of anything related to intoxication, within the possible range of illnesses known to medicine, nor any of their most exotic combinations. 在醫學已知疾病的範圍內，主治醫生無法用任何與中毒有關的因素來解釋身體發生如此大規模系統性變化的原因，也無法解釋為什麼會出現這些奇異的組合。
- The jury are unable to reach a unanimous decision. 陪審團未能達成意見一致的裁決。
- He had to be sold out and was unable to make a fresh beginning. 他不得不傾家蕩產，無法重新開始了。
- The firemen were unable to control the blaze. 消防隊員無法控制這場大火。
- She would be unable to ask her confederate indoors. 她不能請她的同謀者到屋裡去。
- She was unable to get to grips with her assailant. 她無力與襲擊她的人扭打。
- The police were unable to clear up the mystery. 警察解釋不了這個難解的迷。
- I was unable to improve on his translation. 我沒法再提高他的譯文。
- She was unable to keep back her tears. 她無法忍住淚水。
- Mr. Aston seems to be unable to hold down any job. 艾斯頓先生似乎不能保持任何職位。
- John was unable to afford the house. 約翰買不起這房子。
- I was unable to recollect the names. 我回想不起那些名字了。
