Definition: If something is underway, it is happening. Level: C2
经济复苏已经开始了。
Economic recovery is already ___underway.
探险队一出发，意想不到的挑战就出现了。
As soon as the expedition was ___underway, unforeseen challenges arose.
正在进行详细讨论以最终确定协议。
Detailed discussions are ___underway to finalize the agreement.
