Metacetonic acid
[化] 丙酸
🧩 词语组成解析
🗣️ 情景例句
Write a screenplay, do a storyboard, and then shoot the film.
先写剧本串好情节，然后再开拍。
Are you a native Chinese?
你是土生土长的中国人吗？
Diamond necklaces and rings had been beautifully arranged on a background of black velvet.
钻石项链、戒指漂亮地陈列在黑色丝绒上面。