Different departments need to coordinate their actions to improve work efficiency.

coordinate 是动词，由前缀 co-（表示"共同"）和词根 ordin（来自拉丁语，意为"顺序、排列"）加上动词后缀 -ate 组成，字面意思是"使共同有序排列"，引申为"协调、配合"的意思。