她把一头稀疏的浅黄色头发向后梳，挽成了个圆髻。She had pale thin yellow hair she pulled back into a bun.稀疏的灰白头发披散在她肩头。Grey wispy hair straggled down to her shoulders.稀疏的植物只够喂养少量的动物.The sparse vegetation will only feed a small population of anim...
The OPPLC was conformed by differential scanning calorimetry ( DSC ).差热分析 ( DSC ) 的结果表明形成了OPPLC这一新的物相.She was nervous and kept scanning the crowd for Paul.她很紧张，眼睛不停地在人群中搜寻保罗。The thermal denaturation of chicken ovalbumin ...