Confounding
n. 混杂；混淆
🗣️ 情景例句
How do you do?
你好。
Obedience is the first duty of a soldier.
服从是军人的第一职责。
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。