为保护南极的生态环境,到南极考察的科学工作者不仅要把塑料等难以降解的垃圾带离南极,还把粪便等生活垃圾带离南极,这是因为南极
These are his trousers. Mine over there.
Miss Li is his students public signs
We often eat food at Spring Festival
The comb is my parents. It’s me.
This is calculator. is over there.