口を割る

口を割らない

She won't talk.

尋問に耐え、何があろうと 口を割らない

They're paid to stand up to the heat keep their mouths shut, no matter what.

口を割らない 引き返そう

She's not talking, Jim. We need to turn this car around now.

俺に時間をくれ 口を割らせる

Give me time alone. I'll get him to talk.