Do you know what would happen if anyone knew? 你知道这事被人捅出去的后果吗
You knew what I was buying and you knew the price. 你明知我会得到什么,也明知代价是什么
By the time they knew what was happening, 等他们察觉到发生了什么事
Your sister knew perfectly well we were to leave today. 你妹妹明明知道我们今天出发