It's much older than the US.

它比美国古老得多。

It's much older than my country.

它比我的国家古老得多。

Her brother and sister who were much older had bought her some dancing shoes.

她的哥哥和姐姐年纪大很多，给她买了舞鞋。

He looks much older than his actual age.

他看起来比实际年龄年长得多。

His unkempt hair made him look much older.

他不整洁的头发让他看起来老了很多。

It can be rude to call someone by their first name if they are much older or more important than you.

如果一个人比你年长或比你重要，直呼其名是不礼貌的。

Will I marry a man much older, or much younger?

或者嫁一个比自己大的多或者小的多的男人？

Would you consider dating someone older? How much older?

你愿意与比你年纪大的人约会吗？大多少？

Alexandria, much older than Egypt.

亚历山大港，比埃及更不朽；

What is making the world so much older?

是什么让全世界的人口日益老龄化？