Frufix
萘乙酰胺
🗣️ 情景例句
How much does it cost?
这得花多少钱？
Do you often learn geography on the weekend?
你常常在周末学地理吗？
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。