[背景阅读]

　　Mother's Day is celebrated to honor all mothers and express gratitude for the hardships they bear in bringing up a child.

　　母亲节是向妈妈们致敬，并表达出我们感激她们生育之恩的一种方式。

　　Most countries including US, Australia, Canada and India celebrate Mothers Day on the second Sunday of May.

　　诸如美国、澳大利亚、加拿大、印度等国家，它们把母亲节定在了五月的第二个星期日。