If something overturns or if you overturn it, it turns upside down or on its side.
例句
The lorry veered out of control, overturned and smashed into a wall...卡車突然失控，翻倒撞上了一堵墻。Alex jumped up so violently that he overturned his glass of sherry...亞歷克斯一下子暴跳起來，結果把他那杯雪利酒都打翻了。
VERB
推翻，撤銷（判決）
If someone in authority overturns a legal decision, they officially decide that that decision is incorrect or not valid.
例句
When the Russian parliament overturned his decision, he backed down...俄羅斯議會推翻了他的決定，他只好作罷。His nine-month sentence was overturned by Appeal Court judge Lord Justice Watkins.上訴法院法官沃特金斯撤銷了對他作出的9個月徒刑的判決。
VERB
顛覆，破壞（政府或體系）
To overturn a government or system means to remove it or destroy it.
例句
He accused his opponents of wanting to overturn the government.他指責反對派企圖顛覆政府。...a society where all the old values had been overturned.摒棄了所有舊價值觀的社會
英英詞典釋義
Adjective
1. having been turned so that the bottom is no longer the bottom;
"an overturned car""the upset pitcher of milk""sat on an upturned bucket"