He lit a cigarette and perched on the corner of the desk.他点了一支烟,轻轻地坐在书桌角上。
A perch is a short rod for a bird to stand on.(鸟的) 栖木A small, yellow bird in a cage sat on its perch outside the house. 屋外,一只小黄鸟站在鸟笼的栖木上。