keep track of

汉语翻译

例句：

1. Keep track of the time you actually travel.
   把你旅行的实际时间记录下来。
2. Please ask if you cannot keep track of what I'm telling you.
   如果你们听不懂我所讲的话，请提问。
3. As a doctor James has to keep track of the latest developments in medicine.
   作为一名医生，詹姆斯必须了解医学的最新发展动态。
4. I know that the professor will keep track of my attendance but that I will not have to do any papers or take any exam.
   我知道教授会记录我的出勤情况，并且也知道我不用写论文或者参加考试。