break down

vt.打破, 减轻, 把 ... 分解
vi.彻底失败, 崩溃, 停止运转, 坍塌, (数据、观点等)站不住脚

例句与用法：

He broke down and wept when he heard the news.

他听到这个消息时不禁痛哭起来。

Negotiations between the two sides have broken down.

双方谈判已经破裂。

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。

The telephone system has broken down.

电话系统失灵了。

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。

If law and order break down, anarchy will result.

法治一垮，就会出现无政府状态。

We (ie Our car) broke down on the motorway.

我们(的汽车)在高速公路上抛锚了。

Her health broke down under the pressure of work.

工作的压力把她的身体弄垮了。

词形变化：

名词: break dancer | 动词: break-dance |

详细释义：

ph.

失败; 故障