thumb a nose at

• 蔑视； 对 ... 嗤之以鼻

thumb a nose at的用法和样例：

例句

1. Bob thumbed his nose at Tom through the window.
   鲍勃从窗口向着汤姆用拇指按着自己的鼻子，以蔑视汤姆。
2. The unfair trial was a mockery of justice.
   那不公平的审判是对公正的一种蔑视。