Other studies have found evidence for the benefits of expressing affection but have had difficulties separating the expressing from the receiving.
其他研究已经找到有关表达情感有益的证据，但是仍有困难将表达与接收情感区分开来。
One of the strengths of this study was that it specifically examined the benefits of expressing affection.
这项研究的重要意义之一就是它严谨地证明了表达感情的好处。
One of the strengths of this study was that it specifically examined the benefits of expressing affection.
这项研究的重要意义之一就是它严谨地证明了表达感情的好处。
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