One good turn deserves another.It is well known that man knows feelings.People live in harmony of peace.People know who to help because they think they will deserve what they do though not all of them think so.People are warm-hearted and kind to each other.Don't worry whether you can be paid back or not.
It is good to help others.We needn't deserve but we should help others.
再问： 在长一点
再答： In China many people help others without any deserving. There are quite a lot of volunteers like Guo MIngyi. He is modern Lei Feng and saved many,many people in trouble. He saved them by blood transportation. He is so kind to people that we are moved by what he has done.He sets a good example to us. 在不采纳我就要灰心了。
