mother /ˈmʌðə/ n.［c］ 母亲: Failure is the mother of success.失败是成功之母。Chinese is our mother tongue. 汉语是我们的母语。 

motherhood /ˈmʌðəˌhud]/ n. [u] 母亲身份：I always felt that Mary was not equipped for motherhood.我总认为玛丽不具备做母亲的条件。Motherhood was for her a journey into the unknown.做母亲当时对她来说是开始一次探险之旅。