helpneedkeeptrackof是什么意思？
ep track of 是什么意思？
keep track of 1）记录…掌握…的线索 I keep track of my expenses in a notebook. 我把我的支出记在一个笔记本上。 2）明了 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。