基本解释産道英汉例句雙語例句Each year between 50 000 to 100 000 women worldwide are affected by obstetric fistula, a hole in the birth canal.全世界每年有5萬至10萬名婦女罹患産科瘺，即産道出現瘺孔。obstetric canal更多例句词组短语短語soft obstetric canal damage 軟産道損傷soft obstetric canal 軟産道obstetric canal更多词组专业释义毉葯科學産道