D2o
[医] 氧化氘, 重水
🗣️ 情景例句
You have the spirit of a teenager, Susan.
你有一股青少年的朝气， Susan。
Next week I must start my term paper for Poli Sci.
到下周，我必须着手写政治学的期末论文了。
Only one or two people have objected that the students will drive too fast!
只有一两个人提出反对意见，说学生们会把车开得太快！