That went up to 1.6% in the holding areas. Self-grooming, a gentler activity than scratching, increased from 12.3% to 17.4%.

梳理自己毛发是比挠自己稍微温和些的行为，也从所在围场时间的12.3%上升到了所在等候区时间的17.4%。

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But self-grooming spares a man “the frequent vexation of waiting for barbers, and of their sometimes dirty fingers, offensive breaths, and dull razors.”

但自我打扮免去了一个人“频繁的等待理发师、有时会因为脏手指、冒犯的呼吸和钝剃刀而带来的烦恼”。

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Self-restraint and a little good grooming is.

自我克制和打理一下精神面貌才是。

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The scientists could see that this activity had the effect of reducing stress levels, indicated by the return to the animals' normal activities of self-scratching and self-grooming.

BBC: Hugging benefits fractious chimps