(informal)commit oneself to a course of action about which one is nervous
(非正式)冒險(xiǎn)嘗試
To begin an unfamiliar venture, especially after hesitating
冒險(xiǎn)，采取斷然行動(dòng)，結(jié)婚：開(kāi)始進(jìn)行一次不熟悉的冒險(xiǎn)，尤其是在躊躇一陣之后
After a three-year engagement, they're finally taking the plunge.
訂婚三年后，最終他們結(jié)婚了