"Sixty" is the English word for "第六十" (dì liù shí) in Chinese. It comes from the Middle English word "sixti" or "sixty," which ultimately derives from the Old English word "sixtig" and the Proto-Germanic word "sixtigaz." Here are some example sentences using "sixty" in English:

I just turned sixty years old.

The temperature outside is sixty degrees Fahrenheit.

The book is divided into sixty chapters.

In these sentences, "sixty" is used to indicate the age of a person, the temperature in a particular unit of measurement, and the number of chapters in a book.