Hydrodynamic
a. 水動力學, 水力的, 水壓的
? 同義詞
??? 情景例句
How about guests?
來賓呢？
Chains of gold are stronger than chains of iron.
金鏈鎖人比鐵煉更牢靠。
Which girl? I must thank her!
哪個女孩？我得感謝她！