Basketball back on the field in question

Baidu Wikipedia that basketball back to field position and serve the location of the other, back to the earlier games to pick up the ball after the ball the other location farther from the basket, nba game, why are those players After the field until the last ball back faster to pick up one's own bottom line before? That would serve the other party is not close to you from my basket? The other is not allowed to Chu Dixian not pick it up, then throw on the sub for the bottom line?

NBA and FIBA rules is different. NBA's rule is illegal breaches of the law of service line, a foul ball foul line, unauthorized service line outside the court. NBA venue for the back field has a roughly equal with one-third of the short-term top arc, back to field the ball in that hair. NBA players wait until the bottom line is to give one's own ball picking offensive players have enough time to back defense.

About sentence is not a foul ball, I'm not very clear. But I think, from near the basket, does not mean bad, because it can reduce the defense area, not so easy to let others scored coming!