求翻译：2.线的自由球是指开球一方犯规时，获自由球的一方只能将主球在开球线后任意放置，并只可击打开球线与顶边之间的任意目标球。是什么意思？

(2) line is the kick-off party free kick foul when the party can only be free ball the cue ball after the kick-off line any place, and only hit the top edge line and the kick-off between the arbitrary target ball.

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2. free balls are refer kick off when a side violates a regulation, attains the free ball a side only to be able to advocate the ball after the kick-off line willfully to lay aside, and only may strike hits between the kick-off line and the top edge random goal ball.

2. freedom of line when the ball is the kick off party fouls, free party ball can only be to place the cue ball after kick off line of arbitrary, and can only be hit any object ball from kick off line and the top edge.

正在翻译，请等待...