Undercutting
[机] 低切馏出物
🗣️ 情景例句
They had a special on frozen fish down at the supermarket.
超级市场 冷冻鱼特价。
He was shocked by Ted's darling words.
他为泰德厚颜无耻的话受了打击。
only of metal, which wears away by friction.
而是由金属组成，而金属可以随着磨擦而磨损殆尽。