我不愿意伸手去抓那闪亮的黄铜门环，怕把它弄脏。I felt loath to sully the gleaming brass knocker by handling it.蓝墨水弄脏了她的新衣服.She messed up her new dress with blue ink.主人若放任狗弄脏人行道将受处罚.Owners who allow their dogs to foul the footpath will be fined....
The primary forces causing migration of hydrocarbons are buoyancy and capillarity.引起碳氢化合物运移的主要作用力是浮托力和毛细力.Deeper water may ever be drawn back toward the surface of the ground by capillarity.较深处的水甚至也可能由于毛细作用而回升到地面.Of or r...