It is a custom in China to get to one's feet to greet visitors.

在中国的习俗里，迎接客人要站起来。

Strapped to one's feet, in a manner not unlike roller-skates (but much more secure) are crampons.

在脚上捆绑皮带，不是像旱冰鞋那样（而是更安全的），鞋底要有铁钉。

The frozen snow was so slippery that it was hard to keep one's feet.

冰雪溜滑， 人们很难站稳。

Burmese. They get to be twenty-five feet long, though this one's just a baby.

缅甸产的，虽说这只是一条幼蛇，它可长到二十五米长。

Of course between an ideas's out of date and dying out, it is needed to have a driving force, and it is needed to have a man, who lifts stone to drop it on one's own feet.

当然在一个观念的过时和消亡之间，还需要一个推动力，还需要一个人，一个搬起石头砸自己脚的人。