VOA慢速英语:Science of Safety: How Seat Belts, Kevlar Arrived

in case of万一, 如果,发生

例句：In case of fire, walk quickly to the nearest door.
      如果失火, 就赶快朝最近的门跑。

防备

例句：The wall was built along the river in case of floods.
      沿河筑了防护墙以防洪水。

     Take a spare tire along in case of need.
     带个备用轮胎去, 以备不时之需。

2.It resulted from the work of a Swedish engineer, Nils Bohlin.

result from产生于…, 由…引起

例句：Nothing had resulted from our efforts.
      我们的努力没有产生什么结果。

      His failure resulted from not working hard enough.
      他的失败是工作不够努力造成的。

3.He felt good enough to protest being kept in a hospital that night to make sure all was well.

make sure把事情弄清楚, 核实或查明某事物

例句：Go and make sure of the place and time.
      去把时间和地点弄清楚。

设法确保出现某事物

例句：We and our friends will make sure of that.
      我们和我们的朋友要确保这一点。