为了清洁电脑内部，他不得不把主机完全拆开。

He had to completely ___disassemble the computer tower to clean the inside.

工程师需要拆解这个系统以找出故障原因。

The engineer needs to ___disassemble the system to identify the cause of the malfunction.

会议结束后，组织者迅速解散了人群。

After the meeting, the organizers quickly ___dispersed the crowd.