labor of love

US /ˈleɪbər əv lʌv/
UK /ˈleɪbər əv lʌv/
"labor of love" picture
1.

愛的勞動, 心血結晶

a task or project undertaken for pleasure, not for money or reward

:
Restoring this old car has been a real labor of love for him.
修復這輛舊車對他來說真是一項愛的勞動
Writing this book was a labor of love, taking years to complete.
寫這本書是一項愛的勞動,花了數年才完成。