Ketene
n. [化] 乙烯酮, 烯酮
🗣️ 情景例句
Nowadays many people go traveling for the holidays.
下面许多人都在假期里去度假。
Brevity is the soul of wit.
言以简洁为贵。
Which part of England do you come from?
你从英国的什么地方来？