to collect and treat disposable products. Over the years, the disposable products have polluted the mountain. In the warm season when the ice melts, the polluted water flows to Nepali villages below. The problem has gotten worse in recent years because climbing Qomolangma has become more popular...
many means, when you pronounce are not punctual you to be possible to ask teacher, but also may listen to the tape recorder to practice your pronunciation, when you meet the new word you may observe the material, if you cannot understand others meaning, suggested you participa [translate] ...