[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.失去这份合同之后，这家公司陷入了危机。