VOA慢速英语:词汇节目:雨后春笋般的涌现

cupcake – n. a small cake baked in a cup-like mold

set up shop – phrase establish a business

out of the blue – phrase without warning; unexpectedly.

break – v. to make known : to tell

roof – n. the cover of a building

client base – n. a company's primary source of business and revenue

opportunity – n. a good chance for advancement or progress