帮看看结构,The longer your list,however,the less useful it is to

帮看看结构,The longer your list,however,the less useful it is to make your plans
The longer your list,however,the less useful it is to make your plans too specific.
it is to make your plans too specific在句中是什么成分?他修饰的是那部分,及其成分!本人菜鸟!