dotted line

详细解释:【计】 虚线

英语解释：

名词 dotted line:

a line made up of dots or dashes; often used to indicate where you are supposed to sign a contract

例句：

"Now, sir, if you will just sign on the dotted line the car becomes.""好吧，先生，如果你在虚线上签个名的话，这辆小车就是你的了。"