Tribometry
摩擦力测量术
🗣️ 情景例句
It's getting late. Please excuse me, but I must leave right away.
时间不早了。对不起，我得赶紧走了。
Better ask twice than lose you way once.
宁愿问路两次胜过迷路一次。
What's on at the cinema this week?
这周电影院放映什么电影？