重点讲解：
1. keep track of 跟上…的进展；掌握…的最新消息；
例句：I keep track of my expenses in a notebook.
我把我的支出记在一个笔记本上;GAdi[D7i|*@b-w(gR。
2. rely on 依赖；依靠；
例句：In default of expert's help, you'll have to rely on yourselves.
没有专家的帮助，你们只好依靠自己了F]WwaEL#6@%MeM。
3. find out (尤指特意通过努力)发现，找出，查明；
例句：He was asked to find out how the land lies.
有人要他探知事情的真相Kf%R5ux4vRvW。
4. make sense 可以理解；讲得通；
例句：Delaying their retirement by raising the pensionable age might make sense.
通过推迟拿养老金的年龄而让他们迟点退休，可能还有道理J=b10,nPg7gBy7]。
5. endow with 赋予；使天生拥有；
例句：You are endowed with wealth, good health and a lively intellect.
你生来就拥有财富、健康和活跃的思维.IKyS7ohj]4T~。