吃透英语课本，提升在校竞争力
n. 巨石；大圆石
复数：boulders
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。
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 required superhuman effort to lift the huge boulder .
要搬起这块大石头需要有超人的力量。
He climbed over the boulder with ease.
他轻松地爬过了那块巨石。
n.[建]卵石，大圆石；[地质]巨砾
ratchel
grait
