只能說翻譯的人英語水平太次。原文地址:Why do they add background laughter to TV comedies and sitcoms?
「The first use of canned laughter was in the 1950s television series, The Hank McCune Show. The canned laughter came from a box invented by Charley Douglass. His sound machine was called the Laff Box and delivered a variety of laughs, from giggles, to chuckles to tear producing laughter. Types of laughter could be played separately, much like playing a sample keyboard. 」
Interestingly, a few all-time classic tracks recorded in the late 1950s and early 1960s were never retired, and can still be heard on "Frasier"! Today, these classic laugh tracks most likely reside in the tape vaults of Todd-AO in Hollywood.