Melanogallic acid
[医] 黑鞣酸
🧩 词语组成解析
🗣️ 情景例句
He studied harder to improve his English.
他更加努力提高英语水平。
He's a lawyer.
他是律师。
Hello! Did you enjoy yourselves at the party ?
你好！你们在晚会上玩得愉快吗？