1、over "above" + turn + -ing.2、含义：turn from above, turn down from above, roll down from above.3、roll over, turn over (滚下，翻倒) from power.4、另一层含义：turn across. => 翻转，翻身，周转，流通。
实用例句
1. Demonstrators turned on police, overturning vehicles and setting fire to them.
示威者攻击警察，推翻车辆并将其纵火焚烧。
来自柯林斯例句
2. Feng Yun - ching answered hastily , springing up and all but overturning the opiumlamp as he did so.
冯云卿陡的跳起来说,几乎带翻了烟盘里的烟灯.
来自子夜部分
3. Overturning and sliding are seldom a factor in the design of arch dam.
拱坝设计中很少考虑倾覆和滑动的问题.
来自辞典例句
4. Overturning the treaty of Utrecht, and in Austria's case that of Aixla - Chapelle , now appeared distinctly possible.
撕毁乌特勒支和约, 在奥地利是撕毁亚琛和约, 现在看来是唾手可得了.
来自辞典例句
5. The overturning of the cart in front is a warning to the carts behind.