Heptanediol
[化] 庚二醇
🗣️ 情景例句
Come on, Sam ...
好啦， Sam……
Meat is almost more precious than money!
肉贵得买不起了。
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。