It is too expensive for farmers to use routinely, and since it is not effective until a month after vaccination, administering it after an outbreak begins helps very little.
对于农民来说，按常规来使用它则过于昂贵，而且由于它在接种疫苗后一个月才有效，所以在疫情爆发后才使用几乎没有什么帮助。
The common ancestor is, however, too recent for the new species to be a remnant of the first human excursion from Africa.
然而，共同的祖先对于新物种又太现代，而不能作为来自非洲的人类首次远足的遗迹。
Teachers consider learning two languages to be too overwhelming for children from poor families, believing that the children are already burdened by their home situations.
老师们认为学习两种语言对于来自贫困家庭的孩子来说太难了，他们认为孩子们已经被家里的情况压得喘不过气来了。
So if there is a heat wave this summer, it would be best for us, too, to slip on a shirt, use sunscreen and slap on a hat.
所以，如果今年夏天有热浪来袭，我们最好也穿上衬衫，涂上防晒霜，戴上帽子。
If there is a heat wave this summer, it would be best for us, too, to slip on a shirt, slop on sunscreen and slap on a hat.
如果今年夏天出现热浪，我们最好也穿上衬衫，涂上防晒霜，戴上帽子。
The politician's face had appeared on too many news programmes for him to go unrecognized.
这个政治家在新闻节目中出现了太多次，没有人不认识他。
The simple fact is that, for most people, surfing is too expensive to do on a regular basis.
这个简单的事实是：对大多数人来说，网上冲浪费用太高，无法经常进行。
His inability to stay at one job for long had finally proved too much for her.
他干什么工作都不能长久，终于让她无法忍受。
This shirt I bought's too small—I'll have to change it for a bigger one.
我买的这件衬衫太小，得换件大的。
The explosion of weak ties could have profound consequences for our social structures too, according to Judith Donath of the Berkman Center for Internet and Society at Harvard University.
哈佛大学伯克曼互联网与社会中心的Judith Donath 认为，弱联系的激增也会对我们的社会结构产生深远的影响。
Sebastian got a stool for Heidi, for the window-sill was too high for her to see over.
塞巴斯蒂安给海蒂搬了张凳子，因为窗台太高，她看不见对面。
She announced that Grandmama was coming too, for she wanted to see Heidi and her grandfather.
她宣布奶奶也要来，因为她想见海蒂和她的爷爷。
The wind that made such waves however, might have been too strong for the pterosaurs to control their flight once airborne.
然而，对于翼龙来说，产生这样的海浪的风可能过于强大，一旦在空中飞行，它们就无法控制自己的飞行。
There was a gate, but as a general thing he was too crowded for time to make use of it.
有一扇门，但就像平时一样，他太着急了，没有时间去利用它。
Earth has been able to support life because its position relative to the Sun provided it with enough heat, but not too much heat for early bacteria to evolve.
地球之所以能够维持生命，是因为它相对于太阳的位置为它提供了足够的热量，但热量没有多到可以让早期的细菌进化。
It's nice to go for a walk. I will go to the Sheep's Meadow not too far from here.
出去散散步还不错。我会去离这儿不太远的绵羊草坪。
Mother says I've sniffed up too much fresh air for twelve years to ever get to sniffin' with cold.
妈妈说，十二年来，我吸了太多的新鲜空气，再也不会因感冒而抽鼻子了。
By the time he realizes he has walked into a trap, it'll be too late for him to do anything about it.
当他意识到自己已经落入陷阱时，做什么都已经为时过晚了。
You can't think out a number to describe the twenty-five standard deviation event; it's just too large a number for any of us to comprehend.
你无法想出一个数字来描述25个标准差事件；这个数字太大了，我们任何人都无法理解。
The relationship between poor health and inequality is too pronounced for governments to be passive about large-scale intervention.
健康状况恶劣与贫富不均之间的关系已过于明显，政府应该积极广泛介入。
My kids pick up the apples, and the branches are just too big for them to drag.
我的孩子们捡起了苹果，树枝太大了，他们拖不动。
Let's talk about the other end of the acoustical spectrum, sound that is too high for humans to hear—ultrasound.
让我们来谈谈声谱的另一端，人类听不到的声音——超声波。
Everybody knows--the widow, too, for all she tries to let on she don't.
大家都知道——那个寡妇也知道，尽管她竭力装出一副不知道的样子。
It was all owing to his too affectionate nature, which craved for admiration.
这全是由于他生性慈爱，渴望得到别人崇拜。
Papa is leaving, too, but not with us, for he has to go to Paris first.
爸爸也要出门，但不是和我们一起，因为他得先去巴黎。
In the evening it would be too late to see them, for they always shut their little eyes by then.
到了晚上，太晚就看不见它们了，因为那时它们总是闭着小眼睛。
In some of the larger chambers though, these intensified sound may be too deep for us to hear, we can feel it.
尽管在一些较大的房间里，这些强化的声音可能太深以至于我们听不见，但我们能感觉到。
It's not safe for you to ride bikes too fast or play on the street.
在马路上骑车太快或者玩耍都是不安全的。
He hardly dared to ask where he was bound for; he seemed to know the answer only too well.
他几乎不敢问他要去哪儿；他似乎对答案心知肚明。
He hardly dared to ask where he was bound for; he seemed to know the answer only too well.
他几乎不敢问他要去哪儿；他似乎对答案心知肚明。
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