Anthrazine
[化] 二蒽并[1,2-1',2']哒嗪
🗣️ 情景例句
He studied harder to improve his English.
他更加努力提高英语水平。
My hobby is collecting stamps.
我的嗜好是收集邮票。
Then he remembered his comrade downstairs.
然后他想起楼下的同志。