Here comes the problem: Assume the sky is a flat plane. All the stars lie on it with a location (x, y). for each star, there is a grade ranging from 1 to 100, representing its brightness, where 100 is the brightest and 1 is the weakest. The window is a rectangle whose edges are parallel to the x-axis or y-axis. Your task is to tell where I should put the window in order to maximize the sum of the brightness of the stars within the window. [Note, the stars which are right on the edge of the window does not count.]The window can be [translated] but rotation is not allowed. 

为什么是 "does not count" 而不是 "do not count"
为什么是 “on the edge“,不是 “on the edges” ,哪个edge?
right是表示正好的意思么
translated什么意思
Window可以被放在[1.5,1.6]之类的位置么