I just bought a nice cake.

我刚刚好买了块不错的蛋糕。

I have a nice cake on my birthday.

我生日那天有个漂亮的蛋糕。

Would you like to have a cake? I just bought a nice cake.

你想要吃蛋糕吗？我刚刚好买了块不错的蛋糕。

Ann: Would you like to have a cake? I just bought a nice cake.

你想要吃蛋糕吗？我刚刚好买了块不错的蛋糕。