Secondly,the profitable frequency of wetness-dryness encountering to supply water to Yellow River is 20.9%,it shows that it is possible to supply water to Yellow River in the middle route project.是什么意思_Secondly,the profitable frequency of wetness-dryness encountering to supply water to Yellow River is 20.9%,it shows that it is possible to supply water to Yellow River in the middle route project.在线翻译_英语_读音_用法_例句