Then the eensy weensy spider went up the spout again.

于是小蜘蛛再次爬上水管。

Since gravity weakens with distance, the force of Earth's gravity on your head is an eensy weensy bit less than it is on your feet.

由于引力随着距离的增加而减弱，所以地球引力对你头部的作用比对你脚的作用小一点点。