Phenanthraquinone
[化] 菲醌
🗣️ 情景例句
What channel?
哪个频道？
When the cat's away,the mice will play.
猫儿不在家，老鼠就玩耍；猫儿不在耗子闹。
Yesterday morning she came into class as usual.
昨天早上，她像往常那样走进教室。