Daily Chinese Idiom Guessing Game
Stones from other hills can be used to polish jade; referring to advice or help from others that can improve oneself.
比喻能帮助自己改正缺点的人或意见。
《诗经·小雅·鹤鸣》他山之石，可以为错。”
After hearing his colleague's feedback, she saw it as a stone from another hill and refined her project.