boulder

释义

n. 大圆石\n[机] 圆石, 漂石

例句

Imagine trying to balance a chest of drawers on just one of its legs, on top of a boulder, and you get an idea of what Gray gets up to.

想像自己尝试仅仅依靠衣柜的一个腿把它平稳地放到一个大圆石上，你就知道格雷达到了什么境界。

It is thought that the train hit a boulder that had fallen down a cliff on to the track.

人们认为这列火车撞到了从悬崖滚到铁轨上的大圆石。