Dmba
abbr. dimethylbenzanthracene 二甲基苯蒽
🗣️ 情景例句
This is my sister Susan.
这是我妹妹Susan。
He is good at reading and writing, but he wishes he knew how to understand and speak better.
他的阅读和写作是强项，但他希望知道怎样去理解和说得更好。
Now, everyone. Listen, please.
同学们，请注意听。