1. 表示“裤子”、“长裤”，通常只用复数形式，若用作主语，其谓语也用复数；要表示几条裤子用单位词pair, 此时用作主语，其谓语的数与 pair 保持一致。如：
My trousers are very old. 我的裤子很旧了。
This pair of trousers is his. 这条裤子是他的。
Three pairs of trousers were stolen. 有三条裤子被盗。
注：虽为复数，但不可直接受数词修饰(与 pair 连用则可以)，不过它可直接用 these, those 等修饰。
2. 使用代词时，trousers要用复数代词 them, 而是 it；另外对于 a pair of trousers 之类的则用 pair 替代，而不用 one, ones等。如：
Your trousers are dirty. You should wash them. 你的裤子很脏了，你应该把它洗一洗。
单词：trousers的近义词、反义词、形近词辨析
shoe/sneakers/sock/stocking/toe/foot/boot/ankle/leg/trousers/jeans
记忆：
1. shoe [ Fu: ] n. 鞋, 鞋子 The shoes fit me quite well, and the colour suits me too, I think. 这鞋子大小很适合我，而且颜色也适合我。
2. sneakers [ 5sni:kiN] n. 运动鞋 Put on your sneakers before running. 跑前先穿上运动鞋。
3. sock [ sCk] n. 短袜 I bought a pair of nylon socks just now. 我刚才买了一双尼龙短袜。
4. stocking [ 5stCkiN ] n. 长袜 The new stockings are comfortable to wear.新长袜穿上很舒服。
5. toe [ tEu ] n. 趾, 脚趾, 足尖 He toes out of the classroom. 他踮着脚出了教室。
6. foot [ fut ] n. 足, 底部 I have a bike, but I prefer to go to school on foot. 我有自行车，但我更喜欢走路去上学。
7. boot [ bu:t ] n. (长统)靴, 靴子 v. 引导 The soldiers were all in boots. 士兵们都穿着靴子。
8. ankle [ 5ANkl] n. 踝 My left ankle hurts!我的左踝痛！
9. leg [ le^ ] n. 腿, 旅程的一段 He doesn't have a leg to stand on in this discussion. 在这次讨论中，他完全站不住脚
10. trousers [5traJzEz] n. 裤子, 长裤 The boy in blue trousers in my closest friend. 那个穿蓝色长裤的男子是我最密切的朋友。
11. jeans [dVi:ns] n. 牛仔裤 Some people think jeans make them handsome.一些人以为牛仔裤使他们英俊。
12. pants [ pAnts ] n. 裤子, 短裤 We are often in pants in summer. 我们在夏天常穿短裤。
另类阅读：
Pulled on the socks/stockings, he found his toes were still out. He didn’t care. After all, the shoes could hold them all. Then he found the boots hurting his feet, and he could still bear it. When he found the trousers over his legs couldn’t cover his ankles, he couldn’t stand it any more!
与单词：trousers 相关的例句或者名人名言
But his boots and trousers were shabby.
可是靴子和裤子却破旧不堪。
N-COUNT. 田径服;运动服. A tracksuit is a loose, warm suit consisting of trousers and a top which people wear to relax and to do exercise.
Such threadbare coats and trousers never were seen in Rag Fair.
