The Secretary of Defence has said that he would not stand by and let democracy be undermined.国防部长已经表示自己不会坐视民主遭到破坏。I'm not going to sit by and watch a man go to prison for something I've done.我不能坐视他人为了我的所作所为而进监狱。We can't just sit by while these people break the law.我们不能坐视这些人违犯法律。We cannot just sit by and watch him ruin his life.我们不能坐视他毁掉自己的人生。