英汉词典

1. 急剧下降;暴跌
    If something such as the value of something slumps, it falls suddenly and by a large amount.

    e.g. Net profits slumped by 41%...
           净利润暴跌了 41%。
    e.g. Government popularity in Scotland has slumped to its lowest level since the 1970s.
           苏格兰政府的支持率骤跌至 20 世纪 70 年代以来的最低水平。 Slump is also a noun.

2. 不景气;萧条;衰退
    A slump is a time when many people in a country are unemployed and poor.

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    e.g. ...the slump of the early 1980s.
           20 世纪 80 年代初的大萧条

3. (因疲劳、生病等而重重)倒下，跌倒
    If you slump somewhere, you fall or sit down there heavily, for example because you are very tired or you feel ill.

    e.g. She slumped into a chair...
           她轰然倒在了椅子上。
    e.g. He saw the driver slumped over the wheel.
           他看见司机一头栽在了方向盘上。