如果袜套能够卷土重来，那么我们祖先那种环保的生活方式也可以。

If leg warmers could make a comeback, then so can the eco-friendly ways of our forefathers.

假牙、眼镜、助听器请在安全演示结束后摘下，并放在袜套或外衣口袋中。

After safety demonstration please remove glasses, dentures, hearing-aid, and put them in your sock or pocket.