Hit the spot: if sth hits the spot it does exactly what it should do 發揮作用,適得其用,切合需要

I decided I wasn't really hungry, but the coffee really hit the spot and I drank a whole pot. 我其實不餓,可是咖啡來的正是時候,我喝了一整壺. 來源:可可英語-口語頻道

Hit it off (with sb): (與某人)一見如故,志趣相投 quickly form or have a good relationship with sb

I met a girl at the party, and we hit it off straight away. 我在晚會上遇見了一個女孩,我們一見如故.

Hit the jackpot: 意外賺大錢,突然發達 to suddenly win, earn a lot of money, suddenly to be very successful

She's hit the jackpot with her latest book---it's sold millions. 她的新書讓她賺了一大筆錢—銷量達幾百萬冊.