If we had built the reservior, there wouldn't been a terrible flood.假如我们修了水坝，就不会发生可怕的洪灾了。We will improve the water level control of the water reservior.我们将改进冷却水储水罐水位控制方式.The possibility of magnetization technique is...
Lewis Gordon Pugh gets used to the bitter cold as he prepares for a record - breaking dip.在正式打破最低水温游泳的世界纪录前,英国游泳健将李维斯·登·正在冰川上作热身运动.Weathering prepares the rock for transport by decomposing and disintegrating it.风化作用通过分解和...