您要查找的是不是：
- May 1453, Turkey in the Sudan Mai Hamu II with the help of heavy artillery, took a weak defense of Constantinople, the city's fall also represents the demise of the Byzantine Empire. 7世纪以后，由于封建分裂状态的发展，拜占庭帝国瓦解，日渐没落，只剩下巴尔干和小亚细亚，后来又几次遭到西欧十字军的蹂躏，气息奄奄，终于在1453年被土尔其人灭亡！
- Lo and behold, during the night the demons came in their true frightening forms and gobbled up all the weak defenseless beings. 当夜，恶魔以骇人的原型前来，贪婪地吞下这群毫无防备的虚弱的生物。
- The defense of the accused was rather weak. 被告人的辩护软弱无力。
- The spirit is willing but the flesh is weak. 心有余而力不足。
- The forest will act as a defense against desert dust. 森林能起防御沙漠灰沙的作用。
- Many heroic men and women have died in defense of liberty. 许多英勇的男男女女为捍卫自由而牺牲。
- The shock make me go all weak at the knee. 这件事把我吓得两腿发软。
- Insolence is the defense of the weak. 傲慢是软弱的护身符。
- You must be weak in the head if you believe that. 你相信那件事可就太傻了。
- They had a dogged defense of the city. 他们对城市进行了顽强的防守。
- He cannot run because he has a weak heart. 他有心脏病，不能跑。
- A fearful person is a weak person. 怕这怕那的人是软弱的人。
- They are repairing the defense works. 他们正在修防御工程。
- The accused has the right to defense. 被告人有权获得辩护。
- The shock made me go all weak at the knees. 这件事把我吓得两腿发软。
- His weak chest was a legacy of a childhood illness. 他那瘦弱的胸脯是儿时患病的后遗症。
- ARPANET started by the US Dept. of Defense for research. 美国国防部建立了阿帕网，作研究用。
- In a weak moment, I agreed to pay for her holiday. 我一时心软同意了支付她度假的费用。
- She's on attachment to the Ministry of Defense. 她现在隶属于国防部。
- He is weak with hunger, so I have to support him. 他饿得没有力气，我得搀着他。
