to review or check lessons again for better understanding
再次复习或检查课程，以便更好地理解 (zai ci fu xi huo jian cha ke cheng, yi bian geng hao de li jie)
"I always go over lessons before an exam."
"我总是在考试前复习课程。" (wo zong shi zai kao shi qian fu xi ke cheng)
to briefly contact or talk with someone
to change to a newer or better version of something
to take deep breaths to feel relaxed and peaceful
to do work in advance before it is due
to follow someone who has followed you
to introduce or prepare the way for something
