to perch on sth
1.person +轻坐于；坐在…边缘(或顶端)
Dr Quilty perched on the corner of his desk.奎尔蒂医生坐在了桌角上。
He perched himself on the side of the bed.他坐在床沿上。
2.bird +落在
A blackbird flew down and perched on the parapet outside his window.一只乌鸫飞下来落在了他窗外的矮墙上。
3.thing +坐落在…的边缘(或一端)
The vast slums perch precariously on top of the hills around the city.一大片贫民窟坐落在城市周围的山顶上, 摇摇欲坠。