pin down的意思

pin down的音标：pin down的英式发音音标为：[pin daun]pin down的美式发音音标为：[pɪn daʊn]...

It has taken until now to pin down its exact location.直到现在才确定了它的准确位置。We should use our secondary forces to pin down several enemy columns.我们应该用助攻部队来牵制住敌人的几个纵队.He was sure he would pin down the enemy between two firing li...