1. It is the kind of moment in history when, to summarize in the words of Alfred North Whitehead, familiar patterns fade, familiar solutions fail, and familiar options disappear.
    一个引起恐慌的时刻。我们不妨用阿尔弗雷德·诺思·怀特海德的话来加以归纳: 在历史上的这种时刻，熟悉的模式在消退，熟悉的解决办法在失效，熟悉的选择在消失。

2. In nearly every situation, a warm and firm handshake is a safe and positive way of showing an open and friendly attitude toward the people you meet.
    几乎在所有的场合中，热情而有力的握手都是一种安全而积极的做法，向你所遇到的人表明你开放、友好的态度。

3. It is also important to have something that can clean water and kill bacteria, so water from other sources can be made safe to drink.
    储备一些可以净化水和消灭病菌的东西也很重要，这样就可以安全饮用其他来源的水了。

4. First, older exercisers should be sure to check with a doctor to make sure any new exercise program is safe and appropriate.
    第一，老年运动者应该接受医生的检查，以确保新的锻炼计划安全合理。