Hemigroup
[计] 半群
🗣️ 情景例句
Good! I'm interested in your advice.
好！我对你的建议很感兴趣。
In universities,students train to become teachers and engineers.
在大学里，学生们被训练成为教师和工程师。
When you place a sheet of paper in a fax machine, the machine reads the writing on the page and changes the shapes of letters into electronic signals.
当你把一张纸放进传真机里，机器就会"读"纸上的字迹，把字的形状变为电子符号。