1.Many of the world's plants are in danger of dying out.
in danger of處于…危險之中
He was in danger of making a real cock-up of this.
他很有可能會把這事弄得一團糟 。
die out 絕種;絕滅;淘汰
How did the dinosaurs die out?
恐龍是如何滅絕的?
2.Most of the plants are in danger because of humans cutting down forests for farming and cities, and because of pests and climate change.
cut down把…砍倒
A vandal with a chainsaw cut down a tree.
一個故意破壞公物的人用鏈鋸伐倒了一棵樹 。