Catecholtannins
儿茶酚丹宁
🗣️ 情景例句
He's the publisher of the Carlson Publishing Company.
他是Carlson出版公司的老板 。
I meet the boy whose aunt is a TV announcer.
我遇到那个男孩的姑妈是电视播音员。
Good morning, class! Who is on duty today?
同学们，早上好！今天谁值日？