Skin friction
[化] 表面摩擦
🧩 词语组成解析
skin
[skɪn]
n. 皮，皮肤;（蔬菜，水果等）外皮;毛皮;
vt. 剥皮，削皮;擦破皮，擦伤;欺骗;
vi. 使愈合，长皮;
adj. <俚>色情的;
🗣️ 情景例句
There's a phone number --
这有电话号码，
How long will it take to have this radio fixed?
修理这收音机要多久？
One moment we were walking along the top of a hill and now we could see no more than about thirty metres ahead of us.
一时间我们还在山顶上行走，而现在30公尺开外的地方我们都看不清了。