We need a right one and a left one.
我们需要一个右边的，一个左边的。
He left one day on Abbey business and never returned.
有一天他离开去做修道院的事后就没有回来。
I remember looking at my feet and finding it rather unique that my right shoelace was tied and my left one was gone.
当我朝自己的双脚看去时，发现了一件稀罕事：我右脚上的鞋带系得好好的，左脚的鞋带却不翼而飞。
Vivid memories came flooding back of that graduation day when we thronged on the platform, laughing and crying, and said goodbye and left one by one.
毕业送别那天的清晰的回忆如潮水一般涌来，当时我们站在火车站台上，哭着，笑着，送走了一个又一个的同学。
她比我们早一天离开。
He left one morning in September.
他在九月的一个早晨离开的。
He left one word in the sentence.
这句里他漏了一个词。
Which foot hurts? Is it the left one?
哪只脚受伤了？是左脚吗？
Which foot hurts? Is it the left one?
你哪只脚疼？是左脚吗？
Do you prefer the left one or the right?
你喜欢左边的还是右边？
所以我留了一袋在这儿。
是左边的那只吗？
The whole incident left one deep impression.
整个事件给人留下深刻的印象。
Which is bigger, the left one or the right one?
（which作主语）哪一个大一点，左边的一个还是右边的一个？
The whole incident left one indelible impression.
整个事件给人留下深刻的印象。
Ultimately, the flight left one hour late, he said.
最后，这班飞机延后一小时起飞，他说。
Why did Houyi left one sun but not two after shooting?
后羿射日为什么只留下一个太阳，而不是两个。
Your right lung takes in more air than your left one does.
你右肺比你的左肺吸进去的空气多。
That left one problem to resolve - a little boy's birthday present.
接下来还有一个问题需要解决 ----小男孩的生日礼物。
It was found that the waveform of ABRs recorded from the right dura was different from the left one.
结果发现左、右两侧所记录到的波形完全不同。
The aphasic agraphia was related to most parts of the cerebral hemispheres, especially the left one.
双侧大脑半球大部分区域，尤其是左侧，均与失语性失写有关。
Someone ask who is more painful, the left one or the departed one? I should say it's the one who love deeper.
有人问，分离的时候，到底是离开的那个人比较痛苦，还是留下来的那个人比较痛苦？应该说，爱得最深的那个人比较痛苦。
We found that when people look at blurbs under headlines on news homepages, they often only look at the left one-third of the blurb.
我们发现，当人们阅读新闻页面上标题下的导语时，他们常常只看整个导语块的左边三分之一。
We found that when people look at blurbs under headlines on news homepages, they often only look at the left one-third of the blurb.
我们发现，当人们阅读新闻页面上标题下的导语时，他们常常只看整个导语块的左边三分之一。
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