turn upside down

• vt. 倒置；颠倒

turn upside down的用法和样例：

例句

用作及物动词 (vt.)

1. He turned the glass upside down.
   他将玻璃杯子倒置。
2. The law of demand is turned upside down.
   需求法则完全颠倒了。
3. But his class instinct led him to turn history upside down.
   但是他的阶级本能使他把历史弄颠倒了。