Hexynedioic acid
[化] 己炔二酸
🧩 词语组成解析
🗣️ 情景例句
You have to ask for my father's permission.
你必须征得我父亲的同意。
Please give me your frank opinion.
请给我你坦率的意见。
The police had been told that a bomb had been planted on the plane.
有人报告警察，说飞机上安放了一枚炸弹。