词汇	speaking teaching
释义	speaking teaching 口语教学
随便看	underground rail road station underground railway underground-railway underground railway culture underground railway line underground railway motor coach set underground rhizome underground river underground river silting underground railways underground railway station underground railway station profile underground railway survey underground railway ticket underground railway track underground railway traffic underground railway train underground railway tunnel underground rainwater pump station underground ramp underground ramp development system underground reactor power plant underground reaway underground receiving station underground record