上游的城市将污水排放到河里。Cities upstream use the river to get rid of sewage.我们还推荐去杜罗河上游的短途自选一日游。We also recommend a full day optional excursion to the Upper Douro.冰把河道堵住了, 上游的水流不下来.The ice blocks up the river, making the upstream w...
舌尖前送气塞擦音. 是与z相对应的 关气音.An aspiratded blade - alveolar affricate. It is an aspirated equivalent of [ z ] .舌面送气清塞擦音.An aspirted voiceless palatal affricate.j舌面不送气清塞擦音.This is an unaspirated voiceless palatal affricate....