plunge

英 [plʌn(d)ʒ] 美[plʌndʒ]

(informal)commit oneself to a course of action about which one is nervous

(非正式)冒险尝试

To begin an unfamiliar venture, especially after hesitating

冒险，采取断然行动，结婚：开始进行一次不熟悉的冒险，尤其是在踌躇一阵之后

After a three-year engagement, they're finally taking the plunge.
订婚三年后，最终他们结婚了

2. Local residents saw it plunge towards Earth with a deafening roar.: 当地的居民看见它伴着一声震耳欲聋的巨响撞向地面。

3. He braced himself for the icy plunge into the black water.: 他做好了准备要跳进冰冷的脏水里。

4. This plunge came in a time of relatively benign economic conditions.: 这次大跌出现在相对良好的经济环境下。

5. The country, they say, will inevitably now plunge headlong into decadence.: 他们说，现在整个国家会不可避免地一头陷入衰退中。