1. He decided to pull the pin and resign from his job.
他决定采取激烈行动辞掉工作。

2. The rebels pulled the pin on the plan at midnight.
叛军在午夜启动了计划。

3. Don’t pull the pin until everyone is safe.
在确保每个人安全之前不要触发行动。

A: Are you really going to pull the pin on this project?
A：你真的要采取激烈行动执行这个项目吗？

B: Yes, it's now or never.
B：是的，现在不做就永远不会做了。

1) 字面意思拔掉手榴弹的保险销

2) 比喻引发危险事件或冲突

3) 表示采取果断或激烈行动

1. 触发危险事件；采取激烈行动

e.g. He pulled the pin and launched the new campaign.
他采取激烈行动，发起了新的活动。

idiom

1. To initiate an action that will likely have significant consequences, originally referring to pulling the pin of a grenade.

Synonym: trigger, initiate, set off