When you have signed the check, I will give you the letter.

你签了字，我就把那封信交给你。”

I've already filled out a slip and signed the check.

我已经填写了一张单据并在支票上签了字。

Then Mr. Fogg pulled out his checkbook and signed a check with his fountain pen.

然后福格先生拿出他的支票簿，用钢笔在一张支票上签了字。

" I've already filled out a slip and signed the check." " To sign" means to endorse, in this case.

“我已经填写了一张单据并在支票上签了字。 ”在这种情况下， “签” 的意思是背书。