You would see initial uses of denim being used in the USA around the mid 19th century.

您会在 19 世纪中叶左右看到牛仔布在美国的首次使用。

In time, after many squeezes, Tom managed to sign his initials, using the ball of his little finger for a pen.

经过多次挤压，汤姆终于用小指头当笔签下了自己名字的首字母。