Tosca
n. 碳酸钙沉积
🗣️ 情景例句
Now, once you put the ring on Susan's finger,
现在， 你一旦将戒指戴上Susan的手指，
Art is long, life is short.
艺术恒久，生命短暂。
You've done very well and made lots of progress.
你功课学得很好，进步很大。