She was unable to keep back her tears.
她无法忍住泪水。
She was unable to contain her excitement.
她无法抑制内心的激动。
I was unable to attend because of a previous engagement.
我因有约在先，无法出席。
I regret that I am unable to accept your kind invitation.
很遗憾，我不能接受你的友好邀请。
She will be unable to attend because of a prior engagement.
因事先有别的安排，她将不能出席。
He was unable to hide his unease at the way the situation was developing.
他无法掩饰对局势演变的忧虑。
He was unable to come to the ceremony, but he sent his son to accept the award in his place.
他不能亲自来参加仪式，但派了他儿子前来代他领奖。
His poor method of learning by rote made him unable to deal with the problems in his work flexibly.
他死记硬背的学习方法使他在工作中不能灵活处理问题。
Neighbors called the fire department, then stood helplessly by, unable to enter the house because flames blocked all the entrances.
邻居们打电话给消防队，然后无助地站在旁边，无法进入房子，因为火焰堵住了所有的入口。
Baudelaire regarded photography as "a very humble servant of art and science"; a medium largely unable to transcend "external reality".
波德莱尔认为摄影是“艺术和科学的一个非常卑微的仆人”；是一种很大程度上无法超越“外部现实”的媒介。
Employers fear they will be unable to recruit students with the skills they need as the economic recovery kicks in, a new survey reveals.
一项新的调查显示，雇主们担心，随着经济复苏的到来，他们将无法招聘到具备所需技能的学生。
One widely accepted psychological definition of boredom is "the distasteful experience of wanting, but being unable, to engage in satisfying activity."
人们普遍接受的一个关于“无聊”的心理学定义是：“因为渴望但无法参与令人满意的活动而带来的不愉快体验”。
Inspection technology allows more than 100 million measurements a second to be made across the ribbon, locating flaws the unaided eye would be unable to see.
检测技术可以在一秒钟内对玻璃带进行超过1亿次的测量，从而定位肉眼无法看到的瑕疵。
Perhaps the most susceptible viewers are children, who may be unable to tell fact from fiction and may try to imitate acts that they see on TV or in the movies.
也许最易受影响的观众是儿童，他们可能无法分辨事实与虚构，并可能试图模仿他们在电视或电影中看到的行为。
On the other hand, a comparatively warm body with a small surface gravity, like Earth's moon, is unable to hold even the heaviest gas and thus lacks an atmosphere.
另一方面，像地球的卫星这种相对温暖、表面引力较小的天体，它们连最重的气体也无法容纳，因此也没有大气层。
A young man sees a sunset and, unable to understand or to express the emotion that it rouses in him, concludes that it must be the gateway to a world that lies beyond.
一个年轻人看到日落，由于无法理解和表达日落在他心中唤起的激情，便得出结论：落日处想必是通往遥远世界的大门。
Without cooperation, a person is unable to succeed, especially in this increasingly interdependent society.
没有合作，一个人是不可能成功的，特别是在这个日益相互依存的社会中。
She was unable to suppress her anger.
她按捺不住怒火。
I tried to contact him but was unable to.
我试着跟他联系，却没联系上。
The driver was unable to hang on to his lead.
这位车手没能守住自己的领先地位。
The plants were unable to withstand the rigours of a harsh winter.
这些植物经受不住严冬的考验。
She stared at him again, unable to believe the evidence of her senses.
她再次盯着他，不敢相信自己的感觉。
Many families on low incomes will be unable to afford to buy their own home.
许多低收入家庭根本无力购买房子。
He stood without moving a muscle, unable to believe what his eyes saw so plainly.
他一动也不动地站着，不敢相信自己的眼睛。
Our plan to travel to Europe last summer fell through when we were unable to save up enough money.
我们去年夏天预定要到欧洲旅游的计划泡汤了，因为我们未能存到足够的钱。
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