CFCs cause depletion of atmospheric ozone.氟氯化碳会损耗大气臭氧.The pressure distributions of the circumfluent cyclone system CFCS are studied experimentally in detail.测定了环流循环除尘系统内的静压分布....the Montreal Protocol to phase out use an...
Owen was listening to this pitiable farrago with feelings of contempt and wonder.欧文带着轻蔑而又好奇的心情听着这一派胡言.Their bodies and clothes were in a pitiable condition.他们的体貌和衣着极其可怜.Her grandmother seemed to her a pitiable figure.祖母在...