VERB
迅速成长;大量涌现
If something such as an industry or a place mushrooms, it grows or comes into existence very quickly.
例句
The media training industry has mushroomed over the past decade...
在过去10年里，媒体培训产业迅速成长。
A sleepy capital of a few hundred thousand people has mushroomed to a crowded city of 2 million.
几十万人的沉寂首府迅速发展成为拥有两百万人口的拥挤都市。