单据买卖的英文：
documentary sales

documentary是什么意思：
adj. 文件的；文献的；文书的；记录的；记实的
n. 记录片

documentary films
记录影片

Faction; documentary (novel); document
纪实小说

The film was a documentary on politicians in Russia.
这部电影是一部关于俄罗斯政坛的纪录片。

He's the narrator of the documentary.
他是纪录片的解说员。

I was responsible for documentary storage of the department.
我负责部门内资料文件的保管。

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