由四英里长的城墙围着的设防城镇a fortress town enclosed by four miles of ramparts对来自空中的攻击是无法设防的.There can be no real defence against attacks from the air.他们不能让这座城市不设防.They could not leave the city unguarded....
他轻轻松开油门杆，轮船开始缓缓前行。He gently opened the throttle, and the ship began to ease forward.油门猛然加大到几乎让人恐惧的程度，整个汽车剧烈震颤着。The whole car shuddered with an almost frightening surge of power.你得把油门杆往前推来加大马力。You have to push the throttl...