Câu ví dụ #1
1. They are worried that the smog still hangs in the air and limits visibility to mere miles these days, and tiny particles could enter their body and affect their health.
Xem thêm »1. They are worried that the smog still hangs in the air and limits visibility to mere miles these days, and tiny particles could enter their body and affect their health.
Xem thêm »