trick to do 和 trick to doing 都正确。没有什么区别。
Life is going to shovel dirt on you, all kinds of dirt. The trick to getting out of the well is to shake it off and take a step up. Each of our troubles is a stepping stone. We can get out of the deepest wells just by not stopping,never giving up! Shake it off and take a step up!
黑色粗体的地方为什么是trick to doing,不应该是trick to do 吗?
to do 和 to doing 都可以吗?区别在哪?