他如果不准时回家势必倒霉: he will be in for it if he doesn't get home on time
妈: 名词1.[口语] (母亲) ma; mum; mummy; mother2.(称长一辈或年长的已婚妇女) a form of address for a married woman one generation one's senior 短语和例子舅妈 (maternal) aunt (wife of mother's brother ); 姑妈 (paternal) au
姆妈: [方言]1.(母亲) mother2.(伯母) wife of father's elder brother; aunt3.(尊称年长的已婚妇女) aunt