mum-to-be
Longman Dictionary of Contemporary English 5++LDOCE 5++ˌmum-to-ˈbe noun (plural mums-to-be) [countable] British English informal MBBABY/HAVE A BABYa mother-to-be 准妈妈，孕妇
ˌmum-to-ˈbe nounChineseSyllable
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