名词突变，剧变; [地]隆起; 举起，抬起

名词

1. Mass unemployment may lead to social upheaval.
大批失业会导致社会动乱。

1. 隆起：updraft 向上气流 | upheaval 隆起 | uphill sloping profile 升坡剖面

2. 隆起;上升：upgrowth 生长 | upheaval 隆起;上升 | uphill 上升;坡度;上升的

3. 剧变,动乱：uneasy不稳定 | upheaval剧变,动乱 | uprise起义,暴动

1. 激变；剧变；动乱
An upheaval is a big change which causes a lot of trouble, confusion, and worry.

e.g. Wherever there is political upheaval, invariably there are refugees...
哪里有政治动乱，哪里就一定有难民。
e.g. Having a baby will mean the greatest upheaval in your life.
有了孩子意味着你的生活要发生重大的变化。

noun

1. disturbance usually in protest

Synonym: agitationexcitementturmoilhullabaloo

2. (geology) a rise of land to a higher elevation (as in the process of mountain building)

Synonym: upliftupthrowupthrust

3. a violent disturbance

e.g. the convulsions of the stock market

Synonym: convulsionturmoil

4. a state of violent disturbance and disorder (as in politics or social conditions generally)

e.g. the industrial revolution was a period of great turbulence

Synonym: turbulenceSturm und Drang