underground

相关单词

同義詞

quietly, privately, secretly, secret, chamber, inside, cabinet, sub, metro, subway,

近義詞

buried, secret

反義詞

overground, 地上的

臨近詞

underlie, undergraduate, undergrounder, underground dam, underground law, underground gas, Underground car, underground box, underground air, underground ice, underground way, underground bin

相似詞

undergird, undergo, undergrad, undergraduate, undergrowth, underhand, underlay, underlie, 返回 underground