Nonequivalence
非等价, 反重合运算, “异”运算
🗣️ 情景例句
Do these match?
这些相互搭配吗？
He who is afraid of asking is ashamed of learning.
害怕问者耻于学。
Instead of catching fish,they catch old boots and rubbish.
他们往往鱼钓不到，却钓上来些旧靴子和垃圾。