[00:00.00] 1.Are you keeping up with me?
[00:04.58]大家能否跟得上？
[00:09.17]2.He must study hard to keep up with the class.
[00:15.70]他要努力才能跟上全班同学。
[00:22.23]3.It's too difficult to keep up.
[00:28.03]课程太难了，跟不上。
[00:33.83]4.The situation changes so rapidly that I can't keep up with it.
[00:42.06]形势变化得太快，我都跟不上了。
[00:50.29]5.I'm trying to keep up.
[00:55.47]我正努力保持不落后。
[01:00.66]6.They're my classmates who I have been keeping up with after graduation.
[01:09.25]这些都是你毕业之后一直有来往的同学。
[01:17.84]7.Then you won't keep up with the latest development in China.
[01:26.07]那么中国的最新发展你就不会了解了。
[01:34.30]8.Growing so fast,trying to keep up.
[01:41.83]发展迅速，努力迎头赶上。