1. | [i][t] 使突然前冲（或下落）to move or make sb/sth move suddenly forwards and/or downwards |
She lost her balance and plunged 100 feet to her death. 她没有站稳，从 100 英尺的高处跌下摔死了。 | |
The earthquake plunged entire towns over the edge of the cliffs. 地震将整座整座的城镇掀到悬崖之下。 |
2. | [i] 暴跌；骤降；突降to decrease suddenly and quickly |
Stock markets plunged at the news of the coup. 政变的消息一传来，股票市场便暴跌。 |
3. | [i] + adv./prep. 陡峭地向下倾斜to slope down steeply |
The track plunged down into the valley. 小路陡然而下，直插山谷。 |
4. | [i] （剧烈）颠簸，震荡to move up and down suddenly and violently |
The horse plunged and reared. 马猛然跃起，用后腿直立。 | |
His heart plunged(= because of a strong emotion) . 他的心怦怦乱跳。 |
1. | 突然跌落；突然分离a sudden movement downwards or away from sth |
The calm water ends there and the river begins a headlong plunge. 平静的河水突然中断，开始奔腾直泻而下。 |
2. | ~ (in sth) （数量、价格的）暴跌，猛降，骤减a sudden decrease in an amount or the value of sth |
a dramatic plunge in profits 利润锐减 |
3. | ~ into sth 卷入；参与the act of becoming involved in a situation or activity |
The company is planning a deeper plunge into the commercial market. 这家公司正计划进一步投入商业市场。 |
4. | 跳水；快速游泳an act of jumping or diving into water; a quick swim |
He took the plunge into the deep end. 他跳入深水区。 | |
She went for a plunge. 她去游泳了。 |
