Acetonide
丙酮化合物
🗣️ 情景例句
Whose woods these are I think I know.
这是谁的林子， 我想我知道。
Mercy to the eriminal may be eruelty to the people.
对罪犯的仁慈，就是对人民的残忍。
The lake was not a natural one, but a man-made reservoir.
这不是一个天然湖泊，是一座人工修建的水库。