zone for river conservation河川: stream; river保护区: protection zone河川保护: river conservation保护区: protection zone 东北虎保护区 manchurian tigers zone 保护河川: comfortably下载手机词典可随时随地查词查翻译关注微信公众号:chachacidian,回复:河川保护区,即可在微信中查询翻译