Cavitis
腔静脉炎
🗣️ 情景例句
I did my thesis on Sino-American Business Relationship.
我做的论文题目是中美贸易关系。
Is there any way of ensuring we'll have enough time for our talks?
我们是否能保证有充足的时间来谈判？
If I work in the garden, I have to sit down and rest every five minutes.
如果我在花园里干活，每5分钟就得坐下来休息。