ph.
1. 齐心协力；团结起来；通力合作
If people pull together, they help each other or work together in order to deal with a difficult situation.
2. 保持镇定；克制自己；振作起来
If you are upset or depressed and someone tells you to pull yourself together, they are telling you to control your feelings and behave calmly again.
3. 把…串到一起；把…连成一个整体
If you pull together different facts or ideas, you link them to form a single theory, argument, or story.