Laffer
curve [經](表明稅率與稅收關系的)拉弗曲線
??? 情景例句
Sometimes he's very sad.
他有時很憂悒。
For a few, scholarships were sources of support.
有少數人，獎學金是他們接受教育的學費來源。
You may as well tell me the truth.
你還是把事實告訴我為好。