采购员的英文翻译是purchaser。该词源于拉丁文praecēdere，意思是“to go before”，由此演变成“to go before for the purpose of buying”，也就是“采购”的意思。例句如下：

As the company's chief purchaser, John is responsible for purchasing all of the necessary supplies and materials.

The purchaser negotiated a good price with the supplier for the bulk purchase of office equipment.

中文翻译如下：

作为公司的首席采购员，约翰负责采购所有必要的供应和材料。

采购员与供应商就办公设备的整批采购谈判了一个好价格。