And if you sense somebody in need, pay it forward.

如果你感觉在需要帮助的人，支付它前进。

They will appreciate you more and may inspire them to pay it forward.

他们会更加感激你并且能激励他们不断前进。

"If you get a good meal and you want to pay it forward, you can," founder Dan Newman told The Huffington Post.

“分享剩饭”应用的创始人丹-纽曼表示，“如果你得到了一顿大餐，你也可以付钱作为回报。”

The concept is not new: in 2000, the movie "Pay It Forward" pondered the effect of favours being passed on rather than being returned.

这个观点并不是新的：在2000年，电影《把爱传出去》(“Pay It Forward”)就在思考将接受的恩惠传递下去而不是反馈回去的作用。

It beautifully depicts the benefit of being nice to someone for no personal gain and then encouraging them to "pay it forward" to another party.

这部电影完美地阐述了善待他人而不计个人得失的种种益处，鼓励人们“将爱传出去”。