Green tents at the bottom of Pheasant Wood mark the position of eight pits dug hurriedly behind the German lines in 1916.
在雉鸡林的尽头竖起的绿色帐篷，标志着八个坑的位置，是1916年在德国战线后方仓促地挖出来的。
2
Some way into its path - perhaps around the 10 m mark (or at about the position of the wall of defenders) - the ball's velocity dropped such that it entered the laminar flow regime.
在球运行路径的某一点(10米处，或人墙的位置)球的速度下降，使空气在球体表面形成较稳定的层流。
3
Mark : Lets you remember a position for later resetting with reset .