1.vulnerable to 脆弱的

As a result, our economy and society are vulnerable to little shocks.
于是，在小问题面前，我们的经济和社会变得脆弱不堪。

Just as with certain species and the environment, some people are more vulnerable to toxic atmospheres than others.
正如某些物种和环境一样，有的人在有害的氛围内会比其他人更容易受到伤害。

2.design to 用于设计

On his personal blog, he compared his design to the previous two dragon stamps.
在其个人博客上，他将自己的设计同之前两次发行的龙票设计进行了比较。

They reported the results in the summer of 2008 and plan to transfer the design to structural materials such as armor.
科学家们已经在2008年夏天提交了报告，并准备把结构信息应用到装甲等材料的设计中。

3.shut off 停止；关掉；隔绝

The engine shut off and tapped as it cooled.
关掉的发动机逐渐冷却，发出轻响。

Shut off your computer, and your self stops raging quite as much or quite as loud.
关掉你的电脑，那么你的内心就不会有这么多的烦恼，也不会这么招摇地烦恼。

4.allow to 允许

Allow to freeze solid for 3-4 hours or overnight.
允许冻结3-4小时或隔夜固体。

Apply solution to the tube and allow to become tacky.
在内胎上涂抹胶水并让它发粘。