not open mouth

not open (one's) mouth

To be completely silent; to remain discreet (about something); to not tell anyone (about something). All the while our teacher was shouting at us, we didn't open our mouths. Don't open your mouth about this! I would die of embarrassment if anyone were to find out.

not open one's mouth

and not utter a word

Fig. not to say anything at all; not to tell something (to anyone). Don't worry, I'll keep your secret. I won't even open my mouth. Have no fear. I won't utter a word.

词组	not open mouth
释义	not open mouth not open (one's) mouth To be completely silent; to remain discreet (about something); to not tell anyone (about something). All the while our teacher was shouting at us, we didn't open our mouths. Don't open your mouth about this! I would die of embarrassment if anyone were to find out. See also: mouth, not, open Farlex Dictionary of Idioms. not open one's mouth and not utter a word Fig. not to say anything at all; not to tell something (to anyone). Don't worry, I'll keep your secret. I won't even open my mouth. Have no fear. I won't utter a word. See also: mouth, not, open McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. See also: not open (one's) mouth not open one's mouth open your mouth open the way for (one) open house out in the open burst open an open book, he/she is (like an) be an open book throw open
随便看	out East outed outen the lights outer outer core outfit out for out for, be out for blood out for (something) out for the count out from out from under out from under (something) out front outguess (someone or something) out-Herod Herod outie out in bloom out in droves out in force out in large numbers out in left field out in the cold out in the open