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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。
- Dr： Nothing, just being thoro. This would explain why we've been unable to translate the Tacitus. 沒什麼，只是恍然大悟了。這就能解釋為什麼我們總是無法譯解塔西佗了。
- Investors' zeal to base decisions in numerology also helps explain why Beijing has been unable to temper enthusiasm in the stock market through conventional measures, like credit tightening last week. 股民在基本決策時對數字的熱情，也幫助解釋為什麼北京不能利用常規手段諸如上周的信貸緊縮等給股票市場降溫。
- He omitted to explain why he had been late. 他沒有解釋他為什麼遲到。
- 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。
- He made up a story to explain why he was absent. 他編造了一個故事為他的缺席辯解。
- She was so angry as to be unable to speak. 她氣得連話都說不出來了。
- 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。
- 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。
- I made up a story to explain why I had not been at work and he fell for it. 我編造理由說為什麼沒在工作，他信以為真了。
- 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 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。
- People have propose all sort of hypotheses to explain why dinosaur have become extinct. 人們提出種種假設，試圖說明恐龍為什麼會滅絕。
- The firemen were unable to control the blaze. 消防隊員無法控制這場大火。
- The more Brian tried to explain why he was late the more he tied himself in knots. 布賴恩越想解釋他為什麼遲到，結果越使人對他不理解。
- She would be unable to ask her confederate indoors. 她不能請她的同謀者到屋裡去。
- I think that's my cue to explain why I'm here. 我想這就是要我解釋一下我為什麼到這裡來。
