I'm not kidding, Frank. There's a cow out there, just standing around.

我不是在开玩笑，弗兰克。那边有一头奶牛，就在那里站着呢。

《柯林斯英汉双解大词典》

I was just kidding. I'll get you a copy right away.

不需要，我逗你玩的，我这就给你复印一份。

youdao

Ll: I really was just kidding, Li Hua. You're not a big baby.

你惹急了我就说是开玩笑。

youdao