D2o
[医] 氧化氘, 重水
🗣️ 情景例句
I really appreciate it, Marilyn.
真的很感谢 Marilyn。
The death of wolves is the safety of the sheep.
群狼一死众羊安。
In 1953, a former electronics engineer in his fifties, Christopher Cockerell,who had turned to boat-building on the Norfolk Broads,
在1953年，有一位50多岁名叫克里斯托弗·科克雷尔的原电子工程师，改行在诺福克郡的湖泊地区从事造船业，