Hydordynanmics
[機] 流體力學, 流體動力學
??? 情景例句
Wrap him in the blanket, Dad!
用毯子把他裹好， 爸爸！
I'll have mashed potatoes and green beans.
我要土豆泥和青豆。
Hello! Are you Weihua?
你好！你是魏華嗎？