seven

There are seven days in one week.

(Chinese) 一周有七天。

She bought seven apples at the market yesterday.

(Chinese) 她昨天在市场上买了七个苹果。

Three and four is seven.

(Chinese) 三加四等于七。

The number on his jersey was a bold red seven.

(Chinese) 他球衣上的号码是一个醒目的红色七号。