我需要一顶新帽子。

I need a new hat.

她为徒步旅行买了一顶新帽子。

She bought a new cap for her hiking trip.

她为棒球比赛买了一顶新帽子。

She bought a new cap for the baseball game.

她买了一顶新帽子。

She bought a new hat.

男孩戴着一顶新帽子.

The boy has on a new cap.

他今天戴了一顶新帽子。

He has a new cat on today.

他给她买了一顶新帽子。

He bought her a new hat.

他今天戴瞭一顶新帽子。

He has a new hat on today.

她向我们展示了一顶新帽子。

She showed us a new hat.

我要买一顶新帽子。

I shall buy a new hat.