她穿着随意，牛仔裤和一件运动衫。

She was dressed casually in jeans and a ___sweatshirt.

天气冷时，我穿一件V领长袖运动衫。

In cold weather, I wear a v-neck, long sleeved ___sweatshirt.

我为健身房买了一件新运动衫。

I bought a new ___sweatshirt for the gym.