还有用古代话怎么说英语

"Happy 40th birthday, Mom!" 这是庆祝四十岁生日的常用英文表达。

"Happy" 是形容词，意思是 "快乐的"，"birthday" 是名词，意思是 "生日"。"40th" 是序数词，意思是 "第四十个"。"Mom" 是对妈妈的昵称。

下面是一些更多的英文例句：

"Wishing you a very happy birthday, Mom!"
"May your 40th birthday be filled with love, laughter, and all your favorite things."
"40 never looked so good! Happy birthday, Mom."

翻译如下：

"祝你生日快乐，妈妈！"
"愿你四十岁生日充满爱、欢笑和你最喜欢的一切。"
"四十岁看起来好极了！生日快乐，妈妈。"