such as用法一问！！求解！！！

专业打怪兽

I came across this sentence in Manhattan's SC :

Matt trains in many ways such as by driving on racetracks.

Can anyone explain why it is wrong ? Such as is supposed to be followed by an example and it is so in the above sentence.

such as后面只能接名词吗？？

keithyang926

You can treat 'as' here as a typical preposition. What can follow a prep? --- things act as a noun, such as, 'noun, clause, gerund..'.