Microcavities
微腔（microcavity的复数）
🗣️ 情景例句
But I just sold it and retired.
我前不久把它卖了 然后退休。
A good teacher should always avoid embarrassing his students.
一位好的教师无论何时都应该避免使学生感到难堪。
He's over there. He's cleaning the car.
他在那边，在洗车。