"The tower of the World Trade Center tumbled after the plane hit it"
A church steeple in flames, finally toppling to earth.
I lost balance and toppled forward into a..shallow pool.
The..bus caught fire after toppling down an embankment.
牛津高階第八版
美國韋氏詞典
Dictionary.com
Free Dictionary
維基百科 (自由的百科全書)