break down 与 be broken 的区别

break down
1.(机器等)发生故障,失灵,失效,出毛病,坏掉,损坏：例句:The car broke down
汽车坏了.2.坍塌；崩溃,例句:The bridge broke down in last earthquake.
那座桥在上次地震中坍塌了.3..中断,中止,停顿,破裂：例句:Talks have broken down over the disputed territory.
对有争议的领土问题的谈判破裂了 .4.(使)感情上失去控制,不能抑制感情,放声痛哭起来,情不自禁地痛哭起来：例句:She broke down and wept at the sad news.
她控制不住感情,为此噩耗而哭泣.to break down in tears
放声哭5.(在健康或精神等方面)(使)垮掉,垮下来,(健康等)变得衰弱,衰弱下来,(由于过度忧愁或工作而)精神不支,(体力、精神)支持不住：例句:His health has broken down because of working too hard.
他因工作过度劳累,身体垮下来了.6.制服,克服；镇压,压倒(对方等)；(使)减轻,(使)缓和：例句:Some people experience shyness as a barrier to communication,but this can be broken down gradually.
有些人觉得羞怯成为交际上的障碍,但这是可以逐渐克服的 .7.分成若*分；把(化合物等)分解；把(机器等)拆散,拆开(以便贮藏或运输):例句:to break down a beef carcass into basis cuts
把牛肉畜体分切成几大块to break down a substance into its components
把某种物质分解成各种成分8.把(成本、总数等)分成细目；把(统计资料)分类；分析,对…分类；可被分析,可分类：例句:to break down a hotel bill into daily charges
把旅馆账单归入日常费用类9.打破,破除；毁掉；拆除,拆毁,摧毁,捣毁；破坏；使无效：例句:I had to break the door down because I lost the key.
因我丢了钥匙,不得不把门打破.10.彻底失败,不成功11.证明…不可信,驳斥12.使(橡胶)软化；冲淡…的浓度13.【电子学】(电路、电子管等)绝缘击穿14.把(原木)切小以便在锯床上锯；把(原木)锯成四角木材15.因事故把(锯床或机器)停下来
BE BROKEN
1.坏了
2.摔坏
3.损坏
那个be broken应该是被动语态的坏了吧……