Travertin
n. [地]石灰华,钙华(建筑用)
🗣️ 情景例句
It was nothing.
这不算什么。
One drop of poison infects the whole tun of wine.
一滴之毒，毒染整桶之酒。
so he must stay in bed for a week.
因此他必须卧床一周。