mum2 | BrE mʌm, AmE məm | adjective predicative ▸ to keep or stay mum 保持安静 bǎochí ānjìng ▸ mum's the word! British informal (asking sb to keep a secret) 千万别说出去! qiānwàn bié shuō chūqu ! (promising to keep a secret) 我保证不说出去! wǒ bǎozhèng bù shuō chūqu ! |