您在us后面漏下了who 或在that,指One teammate all of us
整句话是One teammate proved dishonest.一个队员被证明不诚实
prove主动表示被动意义难道不是all of us had been thinking highly of the teammate嘛？我没有漏写啊？您好，One teammate proved)dishonest .是主干（who）all of us had been thinking highly of 是定语从句，修饰One teammate省略了在定语从句中作宾语的关系代词who为什么它是主动表示被动？这个是什么用法您好，prove和turn out：这两个动词通常是这个用法