Purpurin
n. [化]羟基茜草素,红紫素
🗣️ 情景例句
couldn't you?
不是吗？
Familiar paths and old friends are the best.
熟路好遵循，老友最可珍。
I live in a tall building in the middle of the city.What about you?
我住在这个城市中心的一幢高楼里。你呢？