n.政治演说家；难题；除根机

He stumbled over a stump and fell flat on his face. 他给树桩一绊，摔了个嘴啃泥。

He went on the stump in his home state. 他到故乡所在的州去发表演说。

He was on the stump in his home state. 他在自己家乡的州里到处发表政治演说。

We sat on a stump to take a rest. 我们坐在树墩上休息。

The ball narrowly shaved his off stump. 那个球紧贴着他的三柱门的外柱掠过。

If we all stump up a pound we'll have enough for a round of drinks. 如果我们都拿出一英镑，我们就有足够的钱喝一巡酒了。