GbEng
敌人的防线很坚强, 但仍为我军突破。 The enemy's defenses were strong but our soldiers broke through.
我方坦克突破了敌人的防线. Our tanks have breached the enemy defences.
部队进攻敌军防线. The troops charged (at) the enemy lines.
在环形防线上已布置了几处岗哨. Guards had been posted at several points around the perimeter.
拂晓时敌人向我防线开了火。 The enemy opened fire on our lines at early dawn.