D. n. b.
[医] 二硝基苯
🧩 词语组成解析
abbr. 名词
🗣️ 情景例句
She is quite good with her hands.
她的手很巧。
She looks blue.
她满面忧伤。
There are eighteen floors in the building, and he lives on the fifteenth floor.
这幢大楼有18层。他住在第15层。