This is the best thing you've ever done – I am so happy for you!

这是你做过的最好的事–我真为你高兴！

《柯林斯英汉双解大词典》

I am so happy for you and Liz.

我真为你和莉兹高兴。

youdao

I am so happy for you both.

我真为你们俩感到高兴。

youdao

Kathy has also written several plays - Grommits, Wet Dreams, Perfect Mismatch and I'm So Happy For You I Really Am.

BBC: Kathy Lette is a novelist, playwright and broadcaster.