您要查找的是不是：
- defend catchment system 防排水
- defending catchment system 防排水系统
- Used Napa Valley wine crates become rain catchment systems, juice pouches become tote bags, and so on. 只要你能证明你正在多么热切地实现那个梦想，媒体就会把你当作他们的英雄。”
- Surface water supplies, problems and solutions; the small farm dam how to construct one; well drilling the von der Rigg; spring and groundwater protection; urban water supply and sanitation; water vending; roof catchment systems. 地表水供给的问题与解决方法；如何建造农场小蓄水池；凿井；泉水与地下水的保护；城市供水与卫生设备；水的销售；屋顶排水系统。
- Keywords pipes pump stations catchment system inverted siphons; 管道;泵站;截流系统;倒虹吸;
- He undertook to defend this attitude. 他开始为这一态度辩护。
- He won't defend us; he can't say boo to a goose. 他不会帮我们说话的，他胆子很小(对一只鹅也不敢嘘一声)。
- She demonstrated how best to defend oneself. 她示范最有效的自卫方法。
- roof rainwater catchment systems 屋顶雨水贮集供水系统
- I suppose you also have a caste system in your society. 我想你们的社会里也有一种等级制度。
- Every absurdity have a champion to defend it. 任何谬论都拥有拥护它的斗士。
- The right to dissent is part of our political system. 有持异议的权利是我们政治体制的组成部分。
- The company has briefed a top lawyer to defend it. 公司已将案件委托给最好的律师进行辩护。
- Do you know how to log in to the system? 你知道怎么登录进入这个系统吗？
- Public opinion was against the old feudal system. 公众舆论反对旧的封建制度。
- We shall defend our city, whatever the cost may be. 不管代价如何,我们要捍卫我们的城市。
- The system works on the principle that heat rises. 该项装置是按照热力上升的原理运转的。
- He also had a gun with which to defend himself. 他还有一把自卫用的枪。
- It is our duty to defend our country. 保卫国家是我们的义务。
- The drainage system has been aged. 排水系统已经老化了。
