解释:大部分药材都以新鲜为好,但艾草却以陈年的为佳,体现了药材使用的特殊性。
Every line you draw should have a purpose, even if it's just to make someone smile.
The future of forestry belongs to those who see trees as living systems, not just standing inventory.
Leadership means making tough decisions today that will pay off decades from now.