英语好的来!谢谢!

Only when i meet you do i know i can also own happiness

I know I can also be happy until meeting you.

It is only until I met you, I realized I can also have happiness.

可以用一个"not ...until"句型eg. I didn't know i can have happiness until i meet you!

我觉得强调句是最好的.

楼上的满足你的要求！！
It is happiness that I find that what's life when I meet you
我自己都搞不清楚了 什么乱七八糟 帮我改改语病 谢谢