容颜: mien, complexion...
论文: paper, treatise, thesis, to discuss a paper or thesis (old)...
更加: more (than sth else), even more...
见: to appear, also written...
市场: marketplace, market (also in abstract)...
坡: slope, sloping, slanted...
树林: woods, grove, forest...
开工: to begin work (of a factory or engineering operation), to start a construction job...
低于: to be lower than...
虚拟: to imagine, to make up, fictitious, theoretical, hypothetical, (computing) to emulate, virtual...
