Break down

硅酸盐矿物的特点是耐熔和难以分离。

有什么保障它不会轻易出故障？

这体系最终是稳定的，所以它没有瓦解。

人为的种族差别也就会消除。

如果陀螺仪发生故障，天体导航系统就会接替它继续进行工作。

break down (a) cease to function because of a mechanical, electrical, etc fault （因机械、电力等故障）停止运转, 失灵, 失效 The telephone system has broken down. 电话系统失灵了. We (ie Our car) broke down on the motorway. 我们（的汽车）在高速公路上抛锚了. (b) fail; collapse 失败; 崩溃; 瓦解; 垮 Negotiations between the two sides have broken down. 双方谈判已经破裂. If law and order break down, anarchy will result. 法治一垮, 就会出现无政府状态. (c) (of sb's health) become very bad; collapse （指某人健康状况）变得恶劣; 垮 Her health broke down under the pressure of work. 工作的压力把她的身体弄垮了. (d) lose control of one's feelings 感情失去控制 He broke down and wept when he heard the news. 他听到这个消息时不禁痛哭起来. break (sth) down (esp of money spent) be divided or divide into parts by analysis （尤指金钱花费）分成几部分, 细分 Expenditure on the project breaks down as follows wages 10m, plant 4m, raw materials 5m. 该工程费用开支可分成如下几部分 工资一千万英镑, 厂房设备四百万英镑, 原料五百万英镑. break sth down (a) make sth collapse by striking it hard 猛击某物使之毁坏 Firemen had to break the door down to reach the people trapped inside. 消防人员须破门而入, 才能抢救困在屋里的人. (b) cause sth to collapse; overcome, conquer or destroy sth 使某事物瓦解; 镇压、克服、破坏某事物 break down resistance, opposition, etc 镇压抵抗、反抗等 break down sb's reserve, shyness, etc 克服某人的沉默、羞怯等心态 How can we break down the barriers of fear and hostility which divide the two communities? 怎样才能消除这两地区人民之间的恐惧和仇恨呢? (c) change the chemical composition of sth 改变某物的化学成分 Sugar and starch are broken down in the stomach. 糖和淀粉在胃里被分解.