It was basically a long, buglike body moving on independent sets of wide tracks.

它基本上是一个长长的、像虫子一样的身体，在独立的宽轨道上移动。

What he saw was a great, round, buglike body supported upon two slender legs which ended in delicate feet--the toes curling upward.

他看到的是一个巨大的、圆圆的、像虫子一样的身体，支撑在两条细长的腿上， 腿的末端是精致的脚——脚趾向上卷曲。