The birds like to fly and perch on rooftops , but none have flown away .

火鸡喜欢飞，喜欢在房顶栖息，但没有一只飞走。

The nile perch is nefarious yet applauded ( in the short run ) .

尼罗河鲈鱼虽然凶猛但也颇受欢迎（短期来说）。

In the great hall there was a gold perch for the nightingale , beside the emperor 's throne .

在大厅里，国王的宝座旁边就是为夜莺准备的用金子做的栖木。

Eg. he 'll perch on the edge of his seat to get closer .

他会坐在他位子的边缘，只为与你靠的更近。

Experts hope the drone , which can fly just by flapping its wings , compared with current models which rely on propellers , will eventually be able to swoop through open windows and perch on power lines .

专家们希望这种靠着震动双翅便能飞行的“蜂鸟”可以达到轻易传过打开的窗户和停留在电线上的水平。