The soil washed from the hills is silting up the hydroelectric dams.从山上冲刷下来的泥土就要让水电大坝淤塞了。These dams have restricted the flow of the river downstream.这些堤坝限制了河水顺流而下。Large dams have harmed Siberia's delicate ecological...
Water power schemes ( hydro - electric schemes ) are of two types, high dams or low dams.水力发电工程 ( 水电工程 ) 有高坝和低坝两种类型.Large dams have harmed Siberia's delicate ecological balance.大型水坝对西伯利亚脆弱的生态平衡造成了破坏。The R . A . F .&...
有时候要到达谷底，才会慢慢变好。Sometimes things have to fall apart to make way for better things.不要等待好事降临，你要向幸福进发。Do not wait for good things to happen to you. You need to walk towards happiness.人生就应该是快乐的，要抓住每一天，孩子们，让你们的生活变得非凡起来。Carpe ...