她头两次的化学作业都没有交，这使她开始这门课时成绩就不合格。

She didn't hand in her first two assignments for chemistry, which started her out in the class with a failing grade.

youdao

同学们，我将给各位布置下一次作业，以此开始今天的课。

I'm going to begin this lecture by giving you your next assignment.

youdao

艾马拉人是该地区人口最多的一个原住民群体。 今年是艾马拉人第5518次在冬至庆祝新年的到来，这标志着他们又开始了新一轮的农耕作业。

The Aymara people, one of the largest indigenous groups in the region, celebrated their new year number 5,518 on the winter solstice, which marked the start of the new agricultural cycle.

youdao

So, you turned in p-set 3 today, but we'll have the answers posted for you this afternoon, so you can start studying from p-set 3, even as early as tonight, if you want to, because those answers will be there for you.

今天大家应该要交第三次作业了，而我们会在今天下午将答案给大家贴出来，这样大家就可以尽快开始复习第三次作业的内容了，甚至今天晚上就可以开始，如果你需要的话，这些答案将会给你一些帮助。

麻省理工公开课 - 化学原理课程节选