in order to意思是“为了”，约等于to，但比to的目的性更强，后接动词原形。so that 约等于in order that，在一般情况下，so that前后两句主语不同，so that后面是加的完整的句子。

in order to例句

I go swimming every day in order to keep fit.

我每天游泳以保持健康。

In order to get a complete picture, further information is needed.

为掌握全面情况，还需要详细资料。

Both sides met in order to try to resolve their differences.

双方会晤以努力解决分歧。

Prices have risen in order to offset the increased cost of materials.

为补偿原料成本的增加而提高了价格。

They're putting up new hotels in order to boost tourism in the area.

他们正在盖新旅馆以促进该地区的旅游业。

so that例句

There is a need for more resources so that all children may have a decent education.

需要更多的财力支持，让所有的孩子都受到良好的教育。

All the materials are on site so that work can start immediately.

所有材料都已运抵工地，可以立即开工。

I stood the little girl on a chair so that she could see.

我让小女孩站到椅子上，好让她看得见。

She worked hard so that everything would be ready in time.

她卖力地干着，为的是一切能够及时就序。

I'll give you a key so that you can let yourself in.

我把钥匙给你，你可以自己开门进去。