重點講解：
1. make sense
（行為方式）有道理，合乎情理；
eg. It makes sense to look after yourself.
自己應該照顧自己。
eg. The project should be reappraised to see whether it made sound economic sense.
該項目應重新評估，以確定其是否可以產生良好的經濟效益。
2. not at all
（用于否定句、條件句、疑問句等的句末）全然，一點，根本，究竟；
eg. Robin never really liked him at all.
羅賓從未真正喜歡過他。
eg. There were no roads at all.
那兒根本沒有公路。
3. draw the line
劃定底線；不能容忍；反對；
eg. You have to know what's what and when to draw the line.
你必須搞清狀況以及自己的底線。
eg. I draw the line when it comes to lending money to friends!
當朋友向我借錢時我會劃定最后界限。