例句-1: "Say, did you hear Johnny Carson last night? It's hard to be funny five nights a week, but last night was one of his best shows in a long time. He got some great belly laughs trading jokes with his guest star, Bob Hope."
例句-2: "Fifty years ago, there were three clowns who made a lot of short movies. They are all dead now, but their comedies live on television because they are so full of belly laughs."
例句-3: "My son likes to tell jokes, although he has no intention to become a comedian. Last week, at a party he told a couple of knee-slappers about Bush and Gorbachev. I was quite surprised at his talent."
例句-4: " I was disappointed with that new comedian on TV last night. He talked for ten minutes and told only one knee-slapper during all that time. He'd better find funnier jokes or he'll be looking for a new job."