bridgeheads的翻译，读音
释义：
n. 桥塔, 桥头堡( bridgehead的复数形式 )
n. an area in hostile territory that has been captured and is held awaiting further troops and supplies
n. a defensive post at the end of a bridge nearest to the enemy
n. an area in hostile territory that has been captured and is held awaiting further troops and supplies
n. a defensive post at the end of a bridge nearest to the enemy