这会迫使专家站到一个不利的位置，因为专门技能在一次谈话中只起到适度的作用，如果在信任关系建立之前就断言这些专门技能的话，所谓的谈话也就变味了。

This places experts at a disadvantage, because expertise carries only modest weight within a conversation, and assertion of expertise, in advance of trust, sours the conversation.

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一个人如果在谈话时总是用一只手捂着嘴，这就表明他缺乏自信。

A person who holds a hand over his mouth when he is talking is signaling that he is lacking in confidence.

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