Hexinic acid
[化] 己炔酸
🧩 词语组成解析
🗣️ 情景例句
What do you do for a living?
你是做什么的？
Don't be so modest.
别这么谦虚了。
Then the teacher says, Stop and put your hands in front of you now.
“现在停止，并把手放在面前。”