Mathfile
[计] 数学文件
🗣️ 情景例句
Only a five percent discount? How about twenty percent?
只打九五折？八折怎么样？
Rome was not built in a day.
罗马并非一日可建成；坚持必成。
its action depends on the surface, water or ground, over which it rides.
它的飞行取决于它所悬浮的水面或地面。