mum
/mʌm; mʌm/ adj
(Brit infml 口)
1 silent 沉默的: keep mum, ie say nothing 保持沉默.
2 (idm 习语) ,mum's the `word (Brit infml 口) (used when asking sb to keep a secret 用以要某人保密) say nothing about this 别说出去.
mum / mʌm; mʌm/ (US usu 美式英语通常作 mom / mɔm; mɑm/) n (infml 口) mother 妈; 妈妈
This is my mum. 这是我妈妈. * Hello, mum! 妈, 你好!