用作不及物动词
▲S+～(+A)
She stumped out of the room, deeply offended by his reaction.她重步走出房间，被他的反应深深刺伤了。
用作及物动词
▲S+～+n./pron.
You've stumped me—what is the total mass of the moon?你把我难住了——月球总质量是多少？
◇ 用于be ～ed结构
We're all stumped—we can't work out how she escaped.我们都被难倒了——无法想出她是如何逃脱的。

He used the stump as a table.他把树桩用作桌子。
Rocks and stumps supplied the place of chairs at the picnic.野餐时石头和树桩都充当了椅子。
He wore a broad grin, displaying twin stumps of teeth.他咧嘴笑着，露出一对残牙。