同学你好，该知识点来自沪江网校《英语零基础直达大学六级全能畅学卡【现金奖励班】》的课程，想要更系统的学习，欢迎进入课程学习。不仅可以和更多的同学一起学习，而且还有老师、助教随时的学习指导和知识点解答哦。

同学你好~
He did not begin to admit his mistake until his parents criticized him. 直到父母批评了他，他才开始承认错误。
not…until表示直到……才，比如
The traffic laws don't take effect until the end of the year...
交通法要到年底才生效。
We didn't leave until the very end.
我们直到最后才离开。

祝同学学习进步~