表3显示了每门db2考试有多少道题，要通过考试需要答对多少道题，以及每门考试的时间。

Table 3 shows how many questions are on each DB2 exam, how many you need to correctly answer to pass, and how long you have to take the exams.

youdao

但是你需要花费时间学习一门新的语法以及重新构建你现在的样式表。

But the cost of this is having to learn a new syntax and having to rebuild your current stylesheets.

youdao

波士顿拥有美国最好的公立学校系统，他们安排课程表会考虑到可以让教授同一门课程的老师们有时间一起进行日常备课。

In Boston, which has one of America's most improved public-school systems, schedules are arranged so that those who teach the same subject have free classes together for common planning.

youdao

Just while we're doing that, I think the reputation of this class-- I think--if you look at the course evaluations online or whatever, is that this class is reasonably hard but reasonably fun.

收表的时候,我来说说这门课的名声,你们要是在网站上看了教学评估,就会发现这门课有点难但也很有趣

耶鲁公开课 - 博弈论课程节选