“边线”怎么读

我要求观众们不要走近边线.I asked the spectators to keep back from the sideline.球已出边线.The ball is out of touch.球向边线滚去.The ball ran to the boundary....

“边线”的英语可以翻译为：[电] outer，[体] sideline，foul line （棒球、垒球） ...