Tetrolic acid
[化] 2-丁炔酸
🧩 词语组成解析
🗣️ 情景例句
I know you didn't expect to have me around,
我知道你没有预期我出现在你身边，
The only cure for grief is action.
行动是对悲痛唯一的治疗。
It says here,on this card, that it was used in plays, said Meimei. it's a king's hat!
“这儿，这张卡片上说那是演戏用的，”梅梅说，“是国王的帽子！”