Dipyridone
二甲基联吡啶二酮
🗣️ 情景例句
Lacks vitality.
缺乏活力。
What is done cannot be undone.
木已成舟。
with, superimposed upon, it the continents, together with the islands and other features of the oceans.
上面附加着大陆以及岛屿和海洋的其他形态。