Frictional
a. 摩擦的, 由摩擦而生的\\n[机] 磨擦力, 磨擦上的
🗣️ 情景例句
They're still open?
他们现在还开着吗？
He is not a wise man who cannot play the fool on occasion.
不能偶而装疯卖傻，就不是一个聪明人。
I went downstairs and sat in front of the television pretending to read.
便来到楼下坐在电视机前假装看书。