After the earthquake,the communication system also___,which made the rescue work even more difficul
发布网友
发布时间：2023-04-22 07:42
共5个回答
热心网友
时间：2023-10-18 11:52
(of a machine or motor vehicle) suddenly cease to function
出故障，抛锚
his van broke down.
他的货车抛锚了。
■(of a person) experience a sudden failure of function in the vehicle they are driving
突遇车辆抛锚
she broke down on the motorway.
她的车在高速公路上突然抛锚了。
■(of a relationship, agreement, or process) cease to continue; collapse
（关系、协议、过程）决裂，中断；崩溃
pay negotiations with management broke down.
同资方的有关薪金的谈判破裂了。
■lose control of one's emotions when in a state of distress
（感情）失去控制
the old woman broke down in tears.
这位老妇人控制不住感情，哭了。
■(of a person's health or emotional control) fail or collapse
（人的健康或情感）垮掉
undergo chemical decomposition
化学分解
waste procts which break down into low-level toxic materials.
分解成低毒物质的报废产品。
break something down
demolish a door or other barrier
毁坏（门或其他障碍）
they had to get the police to break the door down.
他们不得不叫*来把门砸开了。
class barriers can be broken down by ecational reform.
通过教育改革可以消除阶级障碍。
separate something into a number of parts
分解
each tutorial is broken down into more manageable units.
每本辅导材料都被分成了更易处理的单元。
■analyse information
分析信息
bar graphs show how the information can be broken down.
条形图说明了如何分析信息。
■convert a substance into simpler compounds by chemical action
分解（利用化学作用将物质转化为较简单的化合物）
almost every natural substance can be broken down by bacteria.
几乎每一种天然物质都可被细菌分解。
2.break off
become severed
断裂
the fuselage had broken off just behind the pilot's seat.
机身正好就在飞行员座位后面断裂了。
■abruptly stop talking
突然住口
she broke off, stifling a sob.
她突然停止说话，忍住了哭泣。
break something off
remove something from a larger unit or whole
断开，撕开
Tucker broke off a piece of bread.
塔克撕下一块面包。
■abruptly end or discontinue something
突然停止，突然中断
Britain threatened to break off diplomatic relations.
英国威胁中止外交关系。
这儿一定要注意break down是指车辆，机动车等出故障，千万不要被汉语意思所影响！
热心网友
时间：2023-10-18 11:52
break down 指的是发生故障 或者彻底损坏
我们中文表达都说因为地震通讯中断 失去与外界的联系
通讯故障出现的可能性是多种的 不一定是线路的问题 也许是机器问题等 不如 break off 恰当
热心网友
时间：2023-10-18 11:53
有问题再问
热心网友
时间：2023-10-18 11:53
句中指地震后通讯系统中断,所以应选择D
热心网友
时间：2023-10-18 11:54
break off:
3) (intr, adverb) to stop abruptly; halt
break down
1) (intr) to cease to function; become ineffective
communications had broken down
