Exploitation
Take children from their homes and squeeze all their talent out until they have nothing left. That's called exploitation, and lots of companies make money off of it. It's not very nice though.
さくしゅ
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
このエージェントは、ギャラをかなり搾取することで有名だ。
This agent is famous for considerably exploiting his guarantees.