Dioxygenase
[机] 二加氧
🗣️ 情景例句
Americans consider it extremely bad manners to be late.
美国人认为迟到是一种极不礼貌的做法。
He plays with my friends every day.
他每天都和我的朋友玩。
Hello. Here's your eraser. Thanks very much!
给你橡皮。谢谢。