一鸣惊人的英文：
[Literal Meaning]
first/call/amaze/people
to amaze people with the first call

[解释]
平时没有突出的表现，一下子做出惊人的成绩。

[Explanation]
to amaze the world with a single brilliant feat

[例子]
在第23届洛杉矶奥运会上，第一次参加奥运会的中国女排一鸣惊人，最后获得了冠军。

[Example]
In the 23th Olympic of Los Angeles, the Chinese woman volleyball team, which was in the games for the first time, made a great coup and won the champion eventually.

[英文等价词]
to set the world on fire
from nowhere
make a great coup
zip across the horizon

The fellow could never resist the temptation to be melodramatic, Walden thought
这家伙总想一鸣惊人，沃尔登想。