广州电子垃圾交易市场:“What is happiness? What is a love?”这句话翻译成中文是什么意思？

what is happiness ? what is the key to happiness? “What is happiness? What is a love?”这句话翻译成中文是什么意思？ content is happiness是什么意思 演讲题目:what is real happiness? 明天就开始了 帮帮忙! The brief happiness is also a kind of happiness还是brief happiness is also a kind of happiness happiness on hand is simple and transparent What can I find the happiness?I'm missing! what is done is done Happiness Is An Attitude!!!谁能帮我翻译下啊？