He's about thirty years old.

他大约三十岁。

It was a small village about thirty years ago.

大约三十年前它是个小村庄。

There was no gym in my school thirty years ago.

三十年前我的学校没有体育馆。

His career spans thirty years.

他的职业生涯跨度了三十年。

He is thirty years old this year.

他今年三十岁。

The Blacks got married thirty years ago.

布莱克一家三十年前结婚了。

He's tall and thin with blonde hair. He's about thirty years old.

他又高又瘦，一头金发。他大约三十岁。

He hopes that the oceans will be free of plastic in about twenty or thirty years.

他希望在大约二十或三十年内，海洋中没有塑料。

Another woman says, He's tall and thin with blonde hair. He's about thirty years old.

另一个女人说：他很高很瘦，金色头发。 他大约三十岁。

He was then thirty years old.

他那时三十岁。