签合同的英文：
contract

参考例句：

Shall we sign the contract?
我们签合同好吗？

The interval between contract signing and shipment is too long, I'm afraid.
恐怕签合同与交货时间相隔太长了。

contract是什么意思：
n. 契约；合同；婚约
v. 感染；（使）缩小，缩短，收缩；订契约

The contract was negotiated.
合约已谈妥。

confidentiality of contracts
合同的保密性

Renewal of contract
合同的续订

crimp contraction
皱缩率

a contracted brow
皱缩的眉头