shirtsleeve

衬衫袖子

He rolled up his shirtsleeves and started washing the dishes.

他卷起衬衫袖子，开始洗碗。

只穿衬衫常用复数，in shirtsleeves

The men were in shirtsleeves because the meeting room was so warm.

会议室太闷热，那几位男士都只穿著衬衫。

不用穿外套的、温暖的多用于天气

By March we were already enjoying shirtsleeve weather.

到了三月，天气已经暖到不用穿外套了。

不拘小节的、实干的

She runs the company with a shirtsleeve, hands-on style.

她以实干、亲力亲为的作风经营这家公司。