汗衫的英文：
singlet
undershirt

a tee shirt
圆领短袖汗衫, t恤衫

You should wear your T-shirt today!
你今天应该穿你的圆领汗衫。

The sweater has ravelled at the elbow
汗衫肘间的线已经散开了。

He opened the window and flung his sweater in
他打开窗户，把他的汗衫扔了进去。

He pulled up the undershirt onto his chest and stood, his chest black, and big stomach muscles bulging under the light
他把汗衫撩到胸部，露出黑黝黝的胸脯，大腹便便地站在灯下。

"cardigan:a knitted upper garment, such as a sweater or a jacket, that opens down the front."
开襟汗衫:一种衣服前面开口的针织上装,如针织紧身毛衣或夹克衫。

She patched her bodice, which was old and worn out, with scraps of calico which tore at the slightest movement
她用许多一触即裂的零碎竹布拼在她那件破旧的汗衫上。

My father, clad in his underwear, stumbled sleepily to the back door and demanded that we keep quiet
爸爸穿着一件汗衫，睡眼惺忪，跌跌撞撞地来到后门，叫我们别闹。

They wear singlet and mini.
她们穿着背心和超短裙。

The steady-state assumption is always valid for both singlet states of ??at noon
在中午，稳定态的假定对?璧牧街值ブ匦宰苁怯行У摹?/UK>