ornamental tree的用法和樣例：
例句
- Some other applications of ornamental tree species were also introduced.
文中還介紹了觀(guān)賞樹(shù)木其它方面的用途。 - Crown gall disease affects a wide range of plants, including roses, ornamental trees and fruit trees.
根癌病影響很多植物，包括玫瑰，觀(guān)賞樹(shù)木和果樹(shù)。
