But when we analyze these cells chemically, we find something very interesting, a chemical in them, an enzyme called telomerase.
但当我们用化学方法分析这些细胞时，我们发现了一些非常有趣的东西，其中有一种化学物质，是一种叫做端粒酶的酶。
I am writing to tell you that we were quite disappointed with your service. We had booked a table, but when we went there at the time as arranged, only to be told there were no seats available.
我想写信告诉你，我们对你的服务非常失望。 我们已经预订了一张桌子，但是当我们按预定的时间去那里的时候，却被告知没有座位了。
As they grew more mobile, we let them move freely around the house during the day, but when we were asleep we had to contain them in a large room, otherwise they'd get up to mischief.
随着它们越来越好动，白天我们让它们在家里自由活动，但当我们睡觉时，我们必须把它们关在一个大房间里，否则它们就会胡作非为。
We want to fight, but when we make a plan to attack, Alambo always says no.
我们想战斗，但当我们制订了攻击计划时，阿拉姆博总是说不。
But when we did the Holy Grail we knew it was a good story that everyone recognises.
但是当我们演绎《圣杯》时，我们发现这是一个每个人都认可的好故事。
But when we begin to use PHP for these purposes, we must also consider our memory usage.
但是当我们出于这些目的开始使用php时，我们也必须考虑内存使用情况。
But when we came right back to the previous station, I could remain indifferent no longer.
但是当我们又回到了终点站的前一站时，我再也不能置之不理了。
But when we say "person," it also — that's more general — it also includes corporation.
但“法人”这个词，更加广义，也指代公司。
But when we think about where anti-bonding orbitals should be, it should be higher in energy.
但当我们讨论反键轨道的时候，它的能量应该更高。
But when we start to question our fears, we begin to realize they are not the final authority.
但当我们开始质疑我们的惧怕时，就开始发现，惧怕不是决定性的。
We dropped her off in the lingerie department, but when we returned, we couldn't find her.
我们把她送到女内衣部，在那儿分手，但当我们回来找她时，却找不见她。
But when we trust in the hands of a Greater Power, our life's work truly can be beautiful.
但是，如果我们相信大师的力量，我们的生活就会变的非常美丽。
We usually get over it in seconds, but when we were younger the bad blood would last for weeks.
我们通常一会儿就没事了，但在年轻血气方刚时，就可能会持续几星期。
But when we were greeted by a familiar face, Dr Wilson, I felt like I had come full circle.
但是，当一张熟悉的面孔映入眼帘，我看到威尔逊博士的时候，我觉得自己兜兜转转回到了原点。
But when we lose focus and stumble off our path it's hard not to let our frustration get the best of us.
但当我们变得三心二意，行路艰难时，我们很容易就会陷入挫败的泥沼中。
But when we got to the next location, it provided me with my most distinct memory of the entire trip.
然而我们的下一站却给了我此行最难以忘怀的一幕。
But when we spend a few moments every day just being with God, our endless distractions will gradually disappear.
但是当我们每天花费片刻与天主在一起，我们受到的那种无尽的干扰就会逐渐消失。
But when we talk about the desktop products, that's essentially the configurations that we're talking about there.
但是当我们谈到桌面产品时，本质上就是指我们在这里讨论的配置。
But when we can keep two forces in balance, then we will have the perfect attitude with which to approach life.
但是一旦我们可以将两种力量保持平衡，我们就能拥有对待生活的良好心态。
But when we do without pork, we also deny our politicians a means of building trusting relationships across the aisle.
但是当我们不要分肥拨款时，我们也就否决了我们的政客们在私下建立信任的一种手段。
But when we look at how we develop and use program plans, we discover that they do not fit neatly into this definition.
但是当我们考虑我们如何编制和使用规划计划时，我们发现它们不太适合这个定义。
At the time, we don't always understand why things are happening, but when we look back, we know it was providence.
在当时我们总是不明白有些事情为什么会发生，但是过后当你回想起来，我们会知道那是天意。
But when we look directly at the mouth, our central vision doesn't see the shadows, and so the smile suddenly disappears.
但当我们直视她嘴巴的时候，我们的中心视力并不能看到该阴影，所以微笑就立刻消失了。
But when we looked at their brains, we found that the bilinguals had significantly more damage than the monolinguals.
然而，通过检查患者的大脑，我们发现，双语使用者大脑受到的损伤大得多。
We make judgements about people, but when we believe that only our assumption can possibly be correct, we fall into this trap.
我们判断其他人行为，但是当我们相信只有我们自己的设想可能是正确的，我们就陷入了一个陷阱。
We make judgements about people, but when we believe that only our assumption can possibly be correct, we fall into this trap.
我们判断其他人行为，但是当我们相信只有我们自己的设想可能是正确的，我们就陷入了一个陷阱。
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