He helped me a lot, and in return, I treated him to dinner.
他帮了我很多忙，作为回报，我请他吃了晚饭。
He lent me his car, and in return, I helped him fix his computer.
他借给我车，作为回报，我帮他修理了电脑。
I took care of her pet, and in return, she helped me clean my room.
我照顾了她的宠物，作为回报，她帮我打扫了房间。
She gave me a book, and in return, I gave her a bouquet of flowers.
她给了我一本书，作为回报，我送了她一束花。
I helped him with his homework, and in return, he taught me to play the guitar.
我帮他完成了作业，作为回报，他教我弹吉他。
