Frictional
a. 摩擦的, 由摩擦而生的\\n[机] 磨擦力, 磨擦上的
🗣️ 情景例句
Yes, how many would you like?
好，你要几片？
Two dogs strive for a bone, and a third runs away with it.
鹬蚌相争，渔翁得利。
The city was equipped with a drainage system, for a great many clay pipes were found beneath the narrow streets.
城里甚至还敷设了排水系统，因为在狭窄的街道底下发现了许许多多陶土制作的排水管道。