Cavitron
n. 一种无痛穿孔锥
🗣️ 情景例句
Great job!
干得好，干得妙！
Who is the auther of this essay?
谁是这论文的作者？
She was choosing a book. He told her about the accident.
她正在选书。他将发生的情况告诉了她。