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 .&...
Subtract four from nine and you have five.九减四得五.The little girl has begun to learn to add and subtract.这小女孩已在学做加减法了.If you subtract 6 from 9, you will have 3.九减六等于三....
He was diagnosed with inoperable lung cancer.他被诊断患了无法手术的肺癌。an inoperable brain tumour不能动手术的脑瘤Warning: If you ignore this error, you may render your device inoperable.警告: 如果忽略此错误, 可能会导致设备无法使用....
A basic two-hour first aid course would equip you to deal with any of these incidents.两小时的基础急救课程能够让你有能力处理这类事件。...the basic skills of reading, writing and communicating.基本的读写和交流技巧Basic flight instrumentation was similar o...