therefore和so that区别

区别就是两者意思上大致是一样的，但therefore但为副词，而so that是连词。

so that中文意思是conj,以便；所以

therefore中文意思是adv. 因此，所以

Environmental systems tend to be nonlinear, and therefore not easy to predict.环境系统一般是非线性的，所以很难预测。

He angled his chair so that he could sit and watch her.他斜移了椅子，以便坐着观察她。