那里的通勤一族平均上下班要花5个小时。The average commuter journey there is five hours long.他们在小舢板上漂浮了3个小时后才被发现。They were spotted after three hours adrift in a dinghy.他好几个小时都对着一堵墙掷网球。He spent hours throwing a tennis ball against a wall....
水磨掉[侵蚀]了岩石.The water has rasped away the rocks.加工工艺上也有说法, 要用 “ 水磨粉 ”.There are also claims processing technology, use the " water mill. "澄清,淘选通过''.'水磨'. ''把精细的颗粒从粗糙的颗粒中分离出来.To separate fine ...