但有一条准线：你如何生活那是你的选择。
围棋游戏是在一块由19条水准线和19条垂直线围成格子的木板上进行的。
The game is played on a board divided into a grid of 19 horizontal and 19 vertical lines.
而像激光这类目标性强的方式需要一条清晰的准线，而且这也会损害传输路径上的所有物体。
Targeted methods like lasers require a clear line-of-sight and could be dangerous for anything in their way.
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