同根派生 英汉例句The marine pile driver has a hydraulic hammer.水下打樁機有一個液壓鎚。His mind may turn to the stock market or he may become fascinated by the operation of a pile driver on his way to work.他的心思可能轉曏股票市場，或他在上班途中對打樁機的駕駛操作人了迷感到新奇不已。