greener pastures idiom (UK also pastures new); (US also new pastures)
更好的新地方；更好的职位
a new place or activity that offers new opportunities
Many scientists working for the government have left for greener pastures in the private sector. 许多原先为政府工作的科学家现在都到私营部门另谋高就了。
She's giving up her job and moving on to pastures new. 她准备辞职，去找更好的工作。