摇身一变（成为）…
to suddenly turn into; to reinvent oneself as
Structure
主语 （从 原来的身份） 摇身一变 ， 成了／成为／变成 新的身份
What it means
Describes a sudden, striking change of identity, role or look: to turn overnight into something new. From 《西游记》, where the Monkey King gives himself a shake and transforms.
How it is built
Subject (+ 从 + old identity) + 摇身一变 + 成了／成为／变成 + new identity: 旧工厂摇身一变，成了创意园区 (The old factory was reborn as a creative quarter).
When to use it
Admiring when said of a town, a building or a business, but often sarcastic about people: 骗子摇身一变，成了“专家” (the con man reinvented himself as an “expert”).
Watch out
It is a sudden leap, not a slow process, and it ends in a noun, not an adjective: ✗慢慢地摇身一变 ✗摇身一变很漂亮 ✓摇身一变，成了网红城市.
Examples
一时间，这座老工业城市摇身一变，成了人人都想去打卡的网红城市。
All at once this old industrial city had turned into an internet-famous destination that everyone wanted to tick off.
昔日的旧工厂摇身一变，成了年轻人喜欢的创意园区。
The old factory buildings have been reborn as a creative quarter that young people love.
他辞职开了网店，从一名普通职员摇身一变成了老板。
He quit his job and opened an online shop, turning overnight from an ordinary clerk into a boss.
Learn this in Lesson 137 · HSK 7–9: 淄博烧烤 (The Zibo barbecue craze)
A dialogue, a reading, word cards with audio and a drill that uses it, in Learn Chinese with Bao. The first lessons of every level are free.
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