Pereonite
n. [动](甲壳动物的)胸节
🗣️ 情景例句
He is still unable to express himself in English.
他仍然不能用英语表达自己的意思。
Don't worry about it.
别管他！
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。