Phenaphthacridone
[化] 苯并萘吖啶酮
🗣️ 情景例句
Mary and Arnold are going steady.
玛丽和阿诺德正式成为情侣。
I remember George's father owns a ship.
我记得乔治的父亲有一艘船。
I'm afraid I don't understand.
恐怕我还不明白您的意思。