six feet under片语KK [sɪks fit ˋʌndɚ] /sɪks fit ˈʌndɚ/发音片语1死了、入土、长眠地下口语He said he'd keep that secret until he was six feet under.他说这个秘密他会带进棺材里。2已埋葬、已下葬口语Both of her grandparents have been six feet under for years.她的祖父母已经入土多年了。用这个字练口说→