" To sign on the dotted line, " then, means to sign the contract.

“在虚线上签字”，则表示签订合同。

" To sign on the dotted line" means that we sign an official form – we sign a document of some sort.

。 “在虚线上签名” 意味着我们签署正式表格——我们签署某种文件。

The president says he did not bring a contract for the Saudis or the Kuwaitis to sign on the dotted line that they approve of the Iranian nuclear deal.

总统表示，他没有让沙特或科威特在合同上签字，证明他们同意伊朗核协议。

With a magical flourish, suddenly the handsome stranger holds out a long contract and a quill, dripping with blood-red ink, and ready for you to sign on the dotted line.

魔法一闪，帅气的陌生人突然拿出一份长长的合同和一支羽毛笔，上面滴着血红色的墨水，准备让你在虚线上签字。