One of the advantages of modern irrigation methods is that they alone can save 20-30 percent of the present volume of wasted irrigation water.
现代灌溉方法的优点之一是，仅凭它们就可以节省目前灌溉用水浪费量的20%-30%。
And those people - and they alone - are our ancestors.
这些人——也只有这些人——成为了我们的祖先。
They alone will not ensure the safety of the tool user.
仅靠工具检查并不能确保工具使用者的安全。
They start out with one or two good ideas that they alone recognize.
他们借一两个独创性的点子起家。
In this little group of rivals, they alone have ditched the person who led them at the beginning of the campaign.
在争四小组中，唯有他们蹬掉了赛季初期率队出击的引路人。
But they project that before the next full moon, they will need the help of middle-schoolers across the country to understand an impending environmental disaster, secrets that they alone can uncover.
但是他们表示在下一个满月之前，将需要全国的中学生来帮助他们理解即将发生的环境灾难，这个秘密是他自行可以揭开的。
They avoid going out alone after dark.
他们避免黄昏后独自出门。
They were convicted on forensic evidence alone.
他们被仅凭法庭科学证据定了罪。
They warned him of the dangers of sailing alone.
他们警告他独自航行的重重危险。
He is, assuredly, not alone in believing they will win.
他肯定不是唯一相信他们会赢的。
They feared that neither spouse would be able to manage alone.
他们担心夫妻双方都无法独自应对生活。
The next year they can live alone.
第二年他们就可以独自生活了。
They found that although sun bears live alone, they have developed a surprising social skill.
他们发现，虽然马来熊独自生活，但它们已经发展出一种惊人的社交技能。
Although they live alone in the wild, the sun bears in the study often played gently with each other.
虽然它们单独生活在野外，但在书房里的太阳熊经常彼此温柔地玩耍。
This surprised them because sun bears are alone and they have no close relationship with human beings.
这让他们很惊讶，因为马来熊是孤独的，它们和人类没有密切的联系。
Clara was not able to stand alone, and how could they get any further?
克拉拉不能单独站立，他们怎样才能走得更远呢？
When they went into the room, Peter's mother was alone at the table mending.
当他们走进房间时，彼得的母亲正独自在桌子旁做针线。
Families eat together less often, he explained, and more people eat alone, either because they are single or they eat in front of television.
他解释说，家人在一起吃饭的次数减少了，越来越多的人独自吃饭，这要么是因为他们单身，要么是因为他们边看电视边吃饭。
The researchers discovered that the number of risks teens took more than doubled when their friends were watching, compared with when they played alone.
研究人员发现，与单独玩耍时相比，青少年在朋友旁观时所承担的风险是前者的两倍以上。
When Captain Cook asked the chiefs in Tahiti why they always ate apart and alone, they replied, "Because it is right."
当库克船长问塔希提岛的酋长们，为什么总是和其他人分开并单独吃饭，他们回答说：“因为这是正确的。”
他们并不孤单。
Because alone as single plants, they cannot survive.
因为它们无法作为单株的植物存活。
Instead they were all inside, alone or in groups of two or three, their faces a few inches from a screen, their hands doing things Montessori surely did not imagine.
相反，他们都在室内，一个人或两三个人一组，他们的脸离屏幕只有几英寸，他们的手做着蒙特梭利绝对想象不到的事情。
Instead, they were all inside, alone or in groups of two or three, their faces a few inches from a screen, their hands doing things Montessori surely did not imagine.
相反，他们都在室内，一个人或两三个人一组，他们的脸离屏幕只有几英寸，他们的手做着蒙特梭利绝对想象不到的事情。
So they left her in the neat little house, alone with her memories.
因此他们把她留在那个整洁的小房子里，独自一人回忆往事。
They plan to relaunch it as a stand-alone company.
他们计划把它重新创办成一家独立的公司。
All the people grieved for the handsome youth; then they went away, leaving him alone by the sea.
所有的人都为这位英俊的年轻人感到悲哀；于是他们走开了，把他独自留在海边。
All the people grieved for the handsome youth; then they went away, leaving him alone by the sea.
所有的人都为这位英俊的年轻人感到悲哀；于是他们走开了，把他独自留在海边。
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