销售助理的英文：
sales co-ordinator

参考例句：

Is the sale assistant position still open ?
销售助理的职位还有空缺吗？

sales是什么意思：
adj. 销售的，售货的
n. 销售（额）

Not for sale will be showing.
非卖品都将展出。

A pickup in sales.
销售量好转

The sale department make an accurate forecast of sale.
销售部门做了一项准确的销售预测。

The sale department makes an accurate forecast of sale.
销售部门做了一项准确的销售预测。

contract note of sales
发售约书;贸易契约