重點講解：
1. keep track of 跟上…的進展；掌握…的最新消息；
例句：I keep track of my expenses in a notebook.
我把我的支出記在一個筆記本上;GAdi[D7i|*@b-w(gR。
2. rely on 依賴；依靠；
例句：In default of expert's help, you'll have to rely on yourselves.
沒有專家的幫助，你們只好依靠自己了F]WwaEL#6@%MeM。
3. find out (尤指特意通過努力)發現，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；講得通；
例句：Delaying their retirement by raising the pensionable age might make sense.
通過推遲拿養老金的年齡而讓他們遲點退休，可能還有道理J=b10,nPg7gBy7]。
5. endow with 賦予；使天生擁有；
例句：You are endowed with wealth, good health and a lively intellect.
你生來就擁有財富、健康和活躍的思維.IKyS7ohj]4T~。