Definition: a group of people or things that arrive or happen together or in a short period of time Level: C2
该地区发生了一波绑架浪潮。
There has been a ___wave of kidnappings in the region.
又一波难民正抵达边境。
Another ___wave of refugees is arriving at the border.
这次促销活动引发了一波新的客户咨询。
The promotion triggered a ___wave of new customer enquiries.
