"贩子"是指买东西再卖出去赚钱的人，常常带有一点不好的意思。

"贩子" refers to a person who buys goods and sells them for profit, often with a slightly negative connotation.

比如"人贩子"、"毒贩子"，都是做坏事的人。

For example, "人贩子" and "毒贩子" are people who do bad things.