Thoracodelphus
[医] 脐上胸联胎
🗣️ 情景例句
What are you doing tomorrow night?
明天晚上做什么？
By doing we learn.
经一事，长一智。
only of metal, which wears away by friction.
而是由金属组成，而金属可以随着磨擦而磨损殆尽。