1. The two companies decided to team up to develop a new app.
这两家公司决定联手开发一款新的应用程序。

2. If we team up, we can finish the project much faster.
如果我们合作，我们完成项目的速度会快得多。

3. They teamed up to win the local competition.
他们组队参加了当地的比赛并赢得了胜利。

A: This project is too big for one person to handle.
A：这个项目一个人处理太难了。

B: I agree. Let's team up and do it together.
B：我同意。我们联手一起做吧。

1) 协作

2) 联手

3) 结盟

1. 合作，联手

e.g.
We decided to team up with a local firm.
我们决定与当地一家公司合作。

phrasal verb

1. to join together with someone to achieve a common goal

Synonym: collaborate, cooperate