供需 | gōng xū | supply and demand |
平台 | píng tái | platform; terrace; flat-roofed building |
建设 | jiàn shè | to build; to construct; construction; constructive |
存在 | cún zài | to exist; to be; existence |
问题 | wèn tí | question; problem; issue; topic; CL:個|个[ge4] |