Hexynedioic acid
[化] 己炔二酸
🧩 词语组成解析
🗣️ 情景例句
do I really have to
我是不是真的有必要
Cats hide their paws.
大智若愚，大巧若拙。
After working with bees for many years, Professor Von Frisch was puzzled by something he had noticed again and again.
在和蜜蜂打了多年的交道后，冯·弗里施教授对他反复注意到的事感到迷惑。