morning sickness
noun [ U ] uk/ˈmɔː.nɪŋ ˌsɪk.nəs/ us/ˈmɔːr.nɪŋ ˌsɪk.nəs/
（孕妇）恶心，晨吐
the feeling of wanting to vomit experienced by some women during the first months of pregnancy
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