It checks whether or not any of of the ball corners has intersected any of the visible bricks.

它检查是否有任何球的四个角有相交的任何有形砖。

youdao

Oh, I almost forgot to mention the effort he puts into our defensive play, in particular at corners where Drogba actually heads the ball away more often than even JT and Alex.

哦，我差点忘了他在球队防守时的作用。防守角球时，他经常比特里和阿莱士还要的争到更多的头球。

youdao

The visitors began brightly after the interval and forced three corners which were dealt with unconvincingly by Villa's keeper Scott Carson, who flapped at the ball on each occasion.

BBC: Aston Villa 4-0 Bolton

Michael Cuddyer and Todd Helton followed with hard singles to put runners at the corners and Kuroda's wild pitch sent Helton to second but Cuddyer had to hold up when the ball caromed off the backstop and back to catcher Chris Stewart.

WSJ: De La Rosa outduels Kuroda, Rockies beat Yanks 2-0