More generally, anyone concerned about the nation's urban air quality ought to be looking at the same particulates coming out of cars.
更普遍的是，担心城市空气质量的人，应当去关注跟汽车排放的相同的颗粒物。
It is very difficult, if not impossible, for the consumer to find out the quality of chocolates by just looking at their appearance in the shop.
消费者即便有可能，也很难在店里仅凭巧克力的外表来判断它们的质量。
Instead, the US researchers said people looking for long-term relationships should select partners who were similar to themselves, rather than seeking out the highest quality partner available.
取而代之的是，美国的人员说，寻找长期婚姻关系的人们应该选择与性格相近的伴侣而寻求最优秀的伴侣。
Instead, the US researchers said people looking for long-term relationships should select partners who were similar to themselves, rather than seeking out the highest quality partner available.
取而代之的是，美国的人员说，寻找长期婚姻关系的人们应该选择与性格相近的伴侣而寻求最优秀的伴侣。
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