“所以呢”是一个用来表达结论或结果的常用语，在英语中可以用“so”来表示。它来源于古英语中的“swa”，意思是“是这样”。

例句：

I didn't have enough money, so I couldn't buy the car. (我没有足够的钱，所以我没能买到那辆车。)

She was sick, so she couldn't come to the party. (她生病了，所以她没能来参加聚会。)

The weather was bad, so we decided to stay home. (天气不好，所以我们决定呆在家里。)