[intransitive] to decrease suddenly and quickly
暴跌；骤降◆Share prices have plunged in recent months.
最近几个月股价暴跌。◆The dollar plunged to its lowest level in six years.
美元骤跌至六年来的最低水平。 SYN plummet  ➡  see note at increase
●ˌplunge ˈinto sth ●ˌplunge sb/sth ˈinto sthto experience sth unpleasant; to make sb/sth do this
经历；陷入；使经历；使陷入◆The country plunged deeper into recession.
这个国家陷入了更深的经济衰退之中。◆After losing the contract, the company was plunged into crisis.
失去这份合同之後，这家公司陷入了危机。