Methylmalonate
[化] 丙二酸二甲酯
🗣️ 情景例句
Where does it go?
放在哪儿？
How about Mary? How long has she lived there?
玛丽怎么样？她在那儿住多久了？
With the invention of writing, a great advance was made, for knowledge could then be not only communicated but also stored.
随着书写的发明，又迈进了一大步，因为这样一来，知识不仅能交流，而且能储存了。