1、长裤的英语单词是：trousers，英[ˈtraʊzəz] 美[ˈtraʊzərz]n. 裤子，长裤。

2、[例句]He was smartly dressed in a shirt, dark trousers and boots.他穿着衬衫和黑裤子，脚蹬皮靴，看上去很帅气。