1 N-COUNT (尤指办公室里的)饮水机 A water cooler is a machine that dispenses drinking water, especially in an office. (尤指办公室里的)饮水机 [mainly US]
2 N-SING 办公室，工作场所(用于表述在办公地点的闲聊) Water cooler is used in expressions that refer to the informal conversations that people have in their office or workplace. 办公室，工作场所(用于表述在办公地点的闲聊)
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Three out of four Americans watched Roots, and then the next day could talk about race relations at the water cooler.
每4名美国人中就有3人收看了电视剧《根》，转天他们会在办公室闲谈关于种族关系的话题。