Recently, there are too many celebrities committing suicide. I don't understand what they could be unhappy about. They have so much money.
ご質問ありがとうございます。
"Recently, there are too many celebrities committing suicide."＝「最近、セレブの自殺が多すぎる。」
"I don't understand what they could be unhappy about."＝「彼らが何に関して不満なのか分からない。」
"They have so much money."＝「彼らはお金持ち（なのに）。」
ご参考に。
アメリカ合衆国 
