考天 附光盘 雅思9分真题题源主题口语_购物网雅思... ... Visit from others来访 Lake，River or Sea／A Place with Water江河湖海 Weekend周末 ...
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不向江河湖海倾倒垃圾 use fewer chemical fer
在江河湖海里到处都有工业垃圾。
他正详细说明到江河湖海中去游泳的好处。
He was expatiating upon the benefits of swimming in rivers, lakes and seas.
由于处在跨越江河湖海和承力的环境下，主缆必须进行特殊防护。
Being over a river or sea and a stressed condition, main cables must be specially protected.
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