try + 动名词意指试验某个动作。
举例
If you have problems sleeping, you could try doing some yoga before you go to bed.
Why don't you try drinking some warm milk?
I would like to try driving a tank.
Have you ever tried eating snake?
try + 不定词意指努力做某事，而这件事可能很困难或甚至不可能办到。
举例
The surgeons tried to save his life but he died on the operating table.
We'll try to phone at 6 o'clock, but it might be hard to find a public telephone.
Could you try to fix my shoes by tomorrow?
He tries to be quiet but he's always been a noisy child.