資料來源 : pyDict

系腰帶,系安全帶;別說話,請安靜,住口!

資料來源 : WordNet®

belt up
     v : refuse to talk or stop talking; fall silent; "The children
         shut up when their father approached" [syn: {close up}, {clam
         up}, {dummy up}, {shut up}, {button up}, {be quiet}, {keep
         mum}] [ant: {open up}]