一鸣惊人----come as a bombshell

例句：
A:How did the black horse perform?
该黑马的表现如何？
B:Swell! He did come as a bombshell.
棒极了！他的确一鸣惊人。

同义词：
make a noise in the world
startle the world

注释:
black horse 黑马