Tsai
n. 蔡（姓氏）
🗣️ 情景例句
I know the owner very well.
我和老板很熟。
When did you arrive?
你什么时候到达?
The operation, which lasted for over four hours, proved to be very difficult because of the hard resin which covered the skin.
手术持续了4个多小时，非常难做，因为皮肤上覆盖着一层硬硬的树脂。