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- In this stable population, the proportion of deaths from cardiac causes was relatiely low, but there are pitfalls in the classification of death. 而是死亡分类有着缺陷，在这个稳定的人群中，由于心脏问题导致死亡的比例相对较低。
- But there are plenty of pitfalls ahead. 但是前方还有很多陷阱。
- But there are pitfalls. 但是，缺陷同样存在。
- But there are two pedals. Which one is the brake? 但是那儿有两个踏板。哪一个是刹车呢？
- He stole the money, but there are extenuating circumstances. 他是偷了钱，但有可以减轻罪责的情况。
- Most children like sweets, but there are some exceptions. 大多数孩子都喜欢吃糖果，但也有一些例外。
- Most students are polite and hardworking but there are a few rotten apples. 大部分学生都有礼貌，非常刻苦，不过也有几个差的。
- I tried to check the accounts but there are so many entries altered or crossed out that it makes one's mind boggle. 我试图将账目核实一下，但变更或销掉账目实在太多，真是令人头痛。
- But there are circumstances that we can't control. 但有些情况是我们没法控制的。
- Company profits have declined over the last three years but there are signs of an upturn on the horizon. 公司的利润在过去的3年中持续下降，不过，好转的兆头已露端倪。
- I rang the bell but there was no answer. 我按了铃，却没有人应门。
- But there are always trade-offs. 但事情总是一分为二。
- But there are so many others to choose from. 但还有那么多另外的人可供选择呢。
- I hope I can,but there are a lot of uncertainties. 我希望我能多买，但不确定的因素太多了。
- Yes, maybe, but there are many exceptions. 是的，也许，但是有许多例外情况。
- I like city life but there are cities and cities. 我喜欢城市生活，但城市之间也有差异。
- But there are mo ments when I shine. 但是我也有闪光的时候。
- I wanted some string but there was none in the house. 我需要一些绳子，但家里一根也没有。
- But there are probably good reasons not to do so. 但也许这样做是不明智的。
- But there are so many caves here. 可是这儿有这麼多洞。
