请 + 在 + Location + 签字
The verb 签字 (qiānzì) means "to sign" one's name, typically on a document or form. It is a verb-object compound where 签 means "to sign" and 字 means "character" or "writing." This word is commonly used in business, legal, and everyday contexts.
请您在这份合同上签字。
Qǐng nín zài zhè fèn hétong shàng qiānzì.
Please sign this contract.
快递到了,你下楼去签字吧。
Kuàidì dào le, nǐ xiàlóu qù qiānzì ba.
The delivery has arrived; go downstairs and sign for it.
老板还没有在报销单上签字。
Lǎobǎn hái méiyǒu zài bàoxiāo dān shàng qiānzì.
The boss hasn't signed the reimbursement form yet.