He was sure the agent was a sleeper, probably for sabotage in the event of an international crisis.

他肯定这名特务是一个长期潜伏者，可能是为了在一旦发生国际危机时进行破坏活动的。

youdao

He was sure the agent was a sleeper, probably for sabotage in the event of an international crisis.

他肯定这名特务是一个长期潜伏者，可能是为了在一旦发生国际危机时进行破坏活动的。

youdao