1. He was raised in his grandparents' because his parents couldn't afford to raise him. He totally understands it and still loves his parents.2. I hope you can be more understanding of him. He has done so much for you.
 (verb) understand (adjective) understanding of somethingunderstanding 很貼切的形容「諒解」或「體諒」
因為他父母無法養他所以他從小是由祖父母養大, 他了解這點仍然很愛他的父母親.< >
The fragrance in his house is reminscent of fresh flowers.