我以为这是个很贵的餐厅，但实际价格很合理。

I thought this was an expensive restaurant, but the prices are ___actually quite reasonable.

你说他30岁？实际上他只有25岁。

You said he's 30? ___Actually, he's only 25.

实际上，西红柿是水果而不是蔬菜。

___Actually, tomatoes are fruits, not vegetables.