Definition: done or happening quickly and unexpectedly Level: B2
他的突然离开让办公室里的所有人都目瞪口呆。
His ___sudden departure left everyone in the office stunned.
公司的政策发生了突然的转变。
There has been a ___sudden shift in the company's policy.
我们都对她突然生病的消息感到震惊。
We were all shocked by the news of her ___sudden illness.
