This is not a common sentence.
I have to know where did you see this sentence to give you correct answer.
But I just googled it.
I found a lot of Japanese useless and funny invention.
So I GUESS that this means your invention is useless.
If you see this sentence one word by one word.
点错科技树-> 点(click) 错(wrong) 科技树(technology tree)
This means you wasted your point to learn the wrong skill in the game.
So I think it means you make efforts to invite useless invention.
0 voted
February 24, 2015
1
Answered
"学校的前面是花园" uses 的(of) to make the noun学校(school) and the other noun前面(front) together.
In this way "the front of the school" becomes a new noun as a subject.
All the sentence becomes the form "A is B".
If you don't want to use 的, 学校前面是花园 is also readable.
Because we know 前面 means a direction, even omit the 的(of), we still know this means the front of the school.
