Ulcus
溃疡
🗣️ 情景例句
Why do we need a swimming pool? Everyone in the family hates swimming!
我们需要游泳池做什么呢？家里人都讨厌游泳。
Could you tell me the cost of production per unit?
请你告诉我每件成品的生产成本好吗？
The Shaws naturally were a musical family.
肖氏一家天生爱好音乐。