上学期我们总共学习了12个单元的翻译：Last term we study a total of 12 units 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

Last semester we studied a total of 12 units

Last term we study a total of 12 units

On the semester we altogether have studied 12 units

Last semester when we have a total 12 units have been studying

Last term we study a total of 12 units