我们需要签订合同。
wǒmen xūyào qiāndìng hétóng 。
We need to sign the contract.
国家之间的协议已经签订。
guójiā zhījiān de xiéyì yǐjīng qiāndìng 。
The agreement between the countries has been signed.
他今天将签订重要的商业协议。
tā jīntiān jiāng qiāndìng zhòngyào de shāngyè xiéyì 。
He will sign an important business agreement today.