You actually wear, like, half sleeves or calf sleeves.

你实际上穿的是半袖或小腿袖。

Why do sprinters wear half sleeves?

为什么短跑运动员穿半袖？

She had white slacks on, very high-waisted, and a white sport shirt with half sleeves, and a lilac-colored handkerchief budding from the pocket over her left breast.

她穿着白色长裤，腰部很高，身穿半袖白色运动衫，左胸上方的口袋里垂着淡紫色的手帕。