所以 (suǒ yǐ): Therefore (Conjunction) — Meaning & Stroke Order

It's raining today, therefore I didn't go to the park.

The weather forecast says it will rain in the afternoon, so remember to bring an umbrella when you go out.

Children need sufficient sleep, so they should go to bed early.

So we need to study hard.

He is sick today, so he didn't go to work.

He was sick yesterday, so he didn't come to school.

Because it's raining, we won't go to the park.

Because I'm busy today, I don't have time to watch TV.

Because he studied hard, he achieved good results in the exam.