日本研究人员日前称，喝酸奶等富含乳酸的食物有利于口腔健康。

Regularly eating yogurt and other foods with lactic acid may be good for your mouth, Japanese researchers report.

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研究人员日前称，具有攻击性的人很容易被认出，因为他们长着“一眼即可看出”的宽脸盘。

Aggressive people are easy to spot because they have instantly recognizable wide faces, researchers claim.

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不过这样的情侣并没有我们想象得那么多。研究人员日前称，其实大多数情侣的感情生活并不快乐。

But not for as many as we would like to think. In fact, most couples are unhappy in their relationship, say researchers.

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