滑翔机依靠上升气流在空中长时间飞行。

___Gliders can stay airborne for hours by riding thermal updrafts.

我们在后院放了一张带靠垫的秋千椅，非常适合午后小憩。

We placed a cushioned ___glider in the backyard, perfect for afternoon naps.

在东南亚的森林里，飞鼠利用它们皮膜在树间滑翔。

In Southeast Asian forests, ___gliders use their skin flaps to glide between trees.