Melanedema
[医] 炭末沉着病, 炭肺
🗣️ 情景例句
We want to keep customers happy.
我们必须让顾客满意。
Tom graduated from college at a very young age.
汤姆很年轻就从大学毕业了。
We are trying to collect money for a wildlife project.
我们正在设法募集资金搞一个野生动物项目。