供需 | gōng xū | supply and demand |
资源 | Zī yuán | Ziyuan county in Guilin 桂林[Gui4 lin2], Guangxi |
zī yuán | natural resource (such as water or minerals); resource (such as manpower or tourism) | |
平台 | píng tái | platform; terrace; flat-roofed building |
系统 | xì tǒng | system; CL:個|个[ge4] |