书签名

例句：

1. 1. The artist signed the painting with his name.
   艺术家在这幅画上签了名。
2. 2. Please sign this document before you leave.
   在你离开之前请在这份文件上签字。
3. 3. The company's CEO signed off on the new project.
   公司的首席执行官批准了这个项目。