Propanoic anhydride
[化] 丙酸酐
🧩 词语组成解析
[化] 酸酐; 酐; 某酐\\n[医] 酐, 脱水物
🗣️ 情景例句
A real dilemma.
一个大伤脑筋的事。
The brightest of all things, the sun, has its spots.
金无赤足，人无完人。
Her shopping had tired her and her basket ad grown heavier with every step of the way home.
去商店买东西把她搞得筋疲力尽；在回家的路上，她每走一步，就感到手里的篮子又重了一点。