Number + 项 + Noun
项 (xiàng) is a measure word used to count items, tasks, projects, agreements, or achievements. It is commonly used in formal or written contexts, such as 一项协定 (an agreement) or 一项任务 (a task).
我们今天要完成三项任务。
wǒmen jīntiān yào wánchéng sān xiàng rènwù.
We need to complete three tasks today.
这项研究花了五年时间。
zhè xiàng yánjiū huā le wǔ nián shíjiān.
This research project took five years.
公司签署了一项新的合作协议。
gōngsī qiānshǔ le yí xiàng xīn de hézuò xiéyì.
The company signed a new cooperation agreement.