Frictional
a. 摩擦的, 由摩擦而生的\\n[机] 磨擦力, 磨擦上的
🗣️ 情景例句
She has the ability to keep calm in an emergency.
她有处变不惊的本事。
My Biochem lectures are in the morning, and the labs are in the afternoon.
生物化学的课安排在上午，实验在下午。
It's the library's. Please be more careful from now on!
“是图书馆的书。从现在起请你倍加小心！”