Definition: to appear suddenly Level: C2
最近，沿海地区涌现了许多新餐馆。
A lot of new restaurants have ___spring ___up along the coast recently.
过去几年里，这座城市涌现了许多科技初创公司。
Many tech start-ups have ___spring ___up in the city over the past few years.
新的机会往往在你最意想不到的时候突然出现。
New opportunities often ___spring ___up when you least expect them.
