I've never heard of a golden birthday.

我从来没听说过金色生日（年龄等于出生日的那年生日）这个说法。

Happy golden birthday! I can't wait to hear all about it when you get back.

金色生日快乐（年纪和出生那天的日子相同的生日）！ 我已经等不及听你回来后分享旅程了！

For example, my sister's birthday is December 9th and her golden birthday would have been the year she turned nine years old.

例如，我姐姐的生日是12月9日，她的黄金生日本应是她满9岁的那一年的生日。

So, for example, my sister's birthday is December 9th and her golden birthday would have been the year she turned nine years old.

例如，我姐姐的生日是12月9日，她最好的生日是她满9岁的那一年。

My golden birthday would've been four years ago.

我的金色生日（年龄等于出生日的那年生日）本应是四年前。

A golden or lucky birthday is when one turns the age of their birth date.

金色生日或者幸运生日是指一个人的年龄与出生日期相同的那年生日。

What happened to the Golden Gate Bridge on its 50th birthday?

在建成50周年那天，金门大桥发生了什么？

I wish you in the birthday day, full of green imagination, golden dream.

愿你在生日的日子里，充满绿色的畅想，金色的梦幻。

Started painting in ink & brush: Golden Age, Gaze, Birthday of the Sun, etc;

开始创作中国水墨画作品《妙龄》、《凝神》、《大海的生日》等；