这一周，我们学会了用英语表达打扫卫生，爱护环境，节约能源。

This week, we have learned how to express "clean up", "save energy" in English.

youdao

这一周，我们学会了用英语表达打扫卫生，爱护环境，节约能源。

This week, we have learned how to express "clean up", "save energy" in English.

youdao