Payment against documents
[经] 凭单付
🧩 词语组成解析
n. 文档（document的复数形式）
🗣️ 情景例句
What time would you like to receive the call?
您想何时叫您？
I cannot afford two days off a week.
我忙得无法一星期抽出两天休假。
and content in the thought that what was possible has been done.
想到能做的事都做了，也就坦然了。