She noticed that some friends of theirs she hadn’t seen in a while were at a restaurant next door, and suggested they go say hello.
她发现有一段时间没见面的朋友就在隔壁餐馆，并且建议他们过去打招呼。
During the first eight months of this year, sales of big pickups were up 14% while car sales stayed flat.
今年的头8个月，大货车的销售量增长了14%，而轿车的销售仍不景气。
While experts were studying the problem, the hotel and several houses disappeared altogether, sliding down the cliff and into the sea.
当专家们正在研究这个问题时，旅馆和几所房子从悬崖上滑下掉进了海里，完全消失了。
David rang up while you were out.
你不在的时候戴维打电话来了。
We've had a pretty bad time while you were away. In fact, we very nearly split up this time.
我们在你走的那段时间过得非常糟糕。确切地说，我们这次几乎分道扬镳了。
Some of them spoke pleasantly and were well behaved, while others were impudent and insulting.
他们当中的一些人谈吐不俗、举止得体，而另一些人则行为不恭、傲慢无礼。
Bown and his colleagues stumbled across it while they were doing geological mapping in the region.
鲍恩和他的同事在该地区进行地质测绘时偶然发现了它。
Researchers measured people's cortisol, which is a stress marker, while they were at work and while they were at home and found it higher at what is supposed to be a place of refuge.
研究人员测量了人们在工作时和在家里时的皮质醇，即一种压力标志的水平，结果发现在家里，这个原本应该是安身之所的地方，皮质醇含量更高。
While they were wandering down the street, Heidi found out what a barrel-organ was, for she had never seen one.
当他们在街上闲逛的时候，海蒂发现了什么是手风琴，因为她从来没见过。
While there were neighborhood schools in cities and suburbs, one-room schoolhouses were common in rural areas.
虽然城市和郊区都有社区学校，但只有一个课室的校舍在农村地区还是很常见。
What they did is that they scanned the brains of rats while they were in a maze and after they went through the maze.
他们在老鼠处在迷宫中及脱离迷宫后，分别对它们进行了脑扫描。
In one fairly typical experiment, subjects were induced to cheat while performing a task, then were interviewed and observed.
在一个相当典型的实验中，受试者在执行任务时被诱导作弊，然后接受采访和观察。
Many centuries ago, in West Africa, traditional storytellers played musical instruments while they were telling stories.
许多世纪以前，在西非，传统的说书人一边讲故事，一边演奏乐器。
While their parents were content to work long hours, young people value flexibility.
虽然他们的父母满足于长时间工作，但年轻人看重灵活性。
While the goats were rushing up to Heidi, bleating loudly, the grandfather took the boy aside.
当羊儿们冲到海蒂身边大声咩咩叫的时候，爷爷把小男孩拉到一边。
Some students were playing football, while others were playing volleyball.
一些学生在踢足球，另一些学生在打排球。
Some of them were round, while others were square.
有些是圆的，有些是方的。
While they were traveling, they happened to pass by a river.
他们在旅行的时候，恰巧经过一条河。
Maybe he was thinking about something else while you were asking.
也许你问的时候他在想别的事。
One morning, while we were fishing, we heard a loud noise.
一天早上，我们正在钓鱼时听到了一声巨响。
While they were playing, the boy found a stone which looked strange.
他们在玩耍的时候，男孩发现了一块看起来很奇怪的石头。
While we were eating breakfast, Claudio went upstairs to collect his things.
我们吃早餐时，克劳迪奥上楼收拾他的东西。
—When did the rainstorm come? —While we were having a physics lesson yesterday.
——暴风雨是什么时候来的？ ——昨天我们正在上物理课的时候。
Mr. Black walked around and offered help while we were doing an experiment.
我们做实验时，布莱克先生四处走动并提供帮助。
Those foreigners couldn't stop taking photos while they were visiting the Suzhou Gardens.
那些外国人在参观苏州园林时忍不住拍照。
While we were eating, Kurt asked me, "John, what is your plan for personal growth?"
吃饭时，库尔特问我：“约翰，你的个人成长计划是什么？”
What was she doing while her friends were swimming?
当她的朋友们在游泳时，她在做什么？
While they were having their fans to get cool air, they were also experiencing Chinese culture.
当他们用风扇获得凉爽的空气时，他们也在体验中国文化。
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