在他成为一个服务员前，他曾在一家百货商店上班。
Before he became a waiter, he had worked in a department store.
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在商店里工作的人叫服务员或叫店员。
Someone who works in a shop is an assistant or shop assistant.
我们商店还需要三位服务员。
We shall need another three assistants in our shop.
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