1 你的衬衣 衣领 / 衣袖 有点脏了。

1 your shirt collar/sleeve is a little dirty.

2 你的衣服袖口 太脏了，再换件别的衣服吧。

2 you cuff is too dirty clothes, and then change other clothes.

3 你的衣服 太脏了 / 有点脏 脱下来我帮你洗洗。

3 your clothes too dirty/take off a little dirty I wash for you.

4 你袜子该洗了吧，好大的味道。

4 you should wash the socks, great taste.

5 你的裤子有点脏，该去洗洗了。

5 your pants a little dirty, it's time to get to wash.