upend：to turn something upside down
Taobao has upended the Chinese retail market.
“upend”是“颠倒”的意思，也常用来表示“巨大的改变”，可以理解为“颠覆”一个行业的常规或现状。
The internet has upended industries, from entertainment to retailing.
我们在介绍和评价某个革命性的产品时，就可以用到 upend。比如一句话评价特斯拉电车：
Tesla, an electric-car manufacturer, has upended the traditional auto industry.
Didi Chuxing, a ride-hailing service in China, has upended the taxi business.
说到“改变”，我们可以想到用 change，shift，“巨大的改变”可能会想到有 change...greatly，想到“颠覆”可能会用 disrupt；相比来说 upend 更形象，改变的程度更大。（太妙了！！！）
1）Technology has upended the publishing industry.
2) Organizers synthesis has upended the perfume industry.
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