美语听力 English Cafe 339（打印版）

　　Topics: American Presidents - Herbert Hoover; knock-knock jokes; awful versus terrible versus terrific; initials in nicknames; that ship has sailed

　　Words:

　　starvation

　　Great Depression

　　to backfire

　　tariff

　　relief effort

　　to memorialize

　　dam

　　lighthearted

　　knock

　　punch line

　　pun

　　to bear with (someone)

　　awful

　　terrible

　　terrific

　　that ship has sailed