You can tell whether someone is physically weak or strong simply by listening to their voice, a study shows.

　　一项研究表明，仅仅依靠听一个人说话，就可以从嗓音中判定出他的身体状况是好还是糟。

　　In tests, volunteers accurately judged a stranger"s strength after hearing a brief snippet of speech.

　　在试验中，志愿者们在倾听过陌生人的简短发言后，就准确的判断出他的力量。

　　Although both sexes give clues to their strength every time they open their mouths, male voices are much easier to judge than female ones, the researchers found.

　　研究者发现，尽管男女在开口说话时都提供了判断他们力量的线索，男性还是比女性容易判断一些。