young-old的用法和樣例：
例句
用作形容詞 (adj.)
- We are not old but we're also not young.
我們不老但也不年輕了。 - The blue mountains never grow old and the green waters flow on forever.
青山不老，綠水長存。
辭彙搭配
- extraction of old trees from young woods 引拔伐(幼林中老樹選...
