a debt of gratitude (一笔感激之债)

Idiom Gratitude

含义

a feeling of being grateful to someone who has helped you

对帮助过你的人心存感激的感觉 (dui bangzhu guo ni de ren xincun ganji de ganjue)

例句

"We owe a debt of gratitude to our mentors."

"我们对我们的导师欠有一笔感激之债" (women dui women de dashi que you yi bi ganji zhi zhai)