Deutoxide
重水
🗣️ 情景例句
Uh, it's four-thirty. Oh my!
啊 ，已经四点半了。啊 ，天啦！
He's behind the rest of the class in reading.
他在阅读方面不如班上的其他同学。
A skeleton was dangling before my eyes.
一具骷髅悬挂在眼前，