But if you can do it any time, that means you can do it tomorrow, and if you can do it tomorrow, well, you may not ever get around to it.  So we brought back the innovation of having due dates.  You could watch the videos any time you wanted during the week, but at the end of the week, you had to get the homework done.
但是如果你可以随时看， 那就以为你可以明天再看 而如果你可以明天看， 嗯…那你估计说不定 就不看了 因此呢我们带来的革新方式 就是有截止日期。 你可以观看这些视频 在这周的任何时候 但是在周末之前， 你必须得完成你的作业