诸药皆宜新，惟艾宜陈。
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。
I'm cleaning my room， cleaning my body and expanding my heart.
The leather industry must evolve to meet both environmental standards and consumer expectations without compromising quality.
Never stop learning; the world of baking is always evolving.
The boundary between physics and mathematics is not as clear-cut as we might think.
书籍是最好的老师。
我画的是被反射的光，而不是被接收的光。
