D2o
[医] 氧化氘, 重水
🗣️ 情景例句
Oh no! Is it serious?
噢， 糟糕， 严重吗？
She is now on vacation.
她正在休假。
The village which had seemed deserted, immediately came to life.Faces appeared at windows.
刚才还似乎空荡荡的村庄一下子活跃了起来，窗口露出了一张张面孔，