大家同時賣，價格往下掉
一樣是「大批賣出」，但焦點從「某一方清掉資產」換成「市場上很多人同時賣」。賣的人一多，買的人跟不上，價格就掉下來——這個下跌的結果，是其他用法沒有的部分。
noun · B2
A time when a lot of people sell their stocks or shares at about the same time, which pushes the price down.
拋售
核心畫面
One way to picture it: a lot of something leaves your hands at once because it is being sold. Not one item at a time — a whole load of it, in a short stretch of time. Who is holding the things changes from use to use: a company, a government, or a crowd of people who all own shares.
可以想成這樣一個畫面：手上的東西一次大批離開，因為被賣掉了。不是慢慢賣一兩樣，而是一整批，在很短的時間裡清掉。名詞 …更多收起
可以想成這樣一個畫面：手上的東西一次大批離開，因為被賣掉了。不是慢慢賣一兩樣，而是一整批，在很短的時間裡清掉。名詞 sell-off 指的是「這一整件事」，不是某個人的一個動作。不同用法差在拿著東西的是誰：可能是一家公司、可能是政府，也可能是一大群手上有股票的人。From the word’s history
The source marks the noun as deverbal from the phrasal verb sell off.
來源註明這個名詞是從動詞片語 sell off 直接變來的（deverbal from sell off），所以它天生就帶著「把東西從手上清掉」的動作感。
Wiktionary entry for sell-off (etymology_text: 'Deverbal from sell off.'), supplied in the evidence packet
From the picture
Also in this word
noun · B2
The selling of a large amount of what a company or person owns — equipment, buildings, land, or part of a business — usually within a short time.
大批出清；資產出售
noun · C1
The selling of an industry or service that the government owns, to private companies or to ordinary people.
（公營事業）出售、民營化