1.terror attack 恐怖袭击

例句：The explanation in theory reveals that it is feasible to mitigate terror attack risk by non-destructive tool.
从理论上说明了采用非破坏性手段可以减轻恐怖袭击的风险E,p6Ob&=BV.oH。

2.in order to 为了

例句：In order to ensure success we must have a complete and thorough plan.
为了保证成功，我们必须要有一个周密的计划1VcnPkmM@4GW%D8vK|9Y。

3.natural disaster 自然灾害

例句：The Ministry of Civil Affairs has established a natural disaster information management system.
民政部建立了一个自然灾害信息管理系统Y^GKImwSN=1N~_U3p7+D。

4.be used to 适用于

例句：This piece of cloth can be used to make a pair of pillow cases.
这块布可以做一对枕套_m3RpW=Bcz24。