So, in terms of what it is that you need to prepare and bring with you for the exam, you need to bring your MIT ID, especially if you haven't been showing up regularly to your recitations and you aren't 100% sure if your TA knows exactly who you are, you need to make sure you have your MIT ID with you.

那么，关于你需要做哪些准备,考试可以带哪些东西，你需要带着你的学生证，尤其是如果你没有经常地参加,习题课,你不能百分之百保证,你的助教确实认识你，那么你更得确保自己到时带着学生证。

麻省理工公开课 - 化学原理课程节选

You're not out of the woods yet Even if you haven't got fixated on anything, there's still this dynamic going on all the time with your id, your ego and your superego.

你并没有脱离险境,即使你并没在任何阶段里发生固着，你的行为仍然会一直受到本我，自我和超我的驱使。

耶鲁公开课 - 心理学导论课程节选