您要查找的是不是：
- The players stationed behind the line of scrimmage. 后卫防守在并列争球线后面的队员
- One of the two players positioned near the flanks behind the line of scrimmage. 中卫在争球线之后靠近侧翼的并列两名队员之一
- They infiltrated behind the lines so as to annoy the emery replacements. 他们渗透敌后以便骚扰敌军的调度。
- Your feet must be behind the line when you serve(= in tennis). 发球时你的脚必须站在底线的外面。
- Stand behind the line and wait for your turn, please. 请站在线后等着轮到你。
- The soldiers were ordered to retreat to safer positions behind the lines. 士兵们奉命撤退到后方较为安全的阵地上去。
- The replays show that Serena's foot was behind the line when she served. 重放录像显示，小威在发球时她的脚是在底线之后的。
- Stand a few paces behind the ball and look down the line toward the target. 站在球后放几步开外,向着球将飞去的方向观察。
- Her daring work behind the enemy lines is now legend. 她在敌後的英勇斗争业迹现在已是传奇美谈。
- The program demonstrates that these functions that define closed areas do indeed fill them, because the lines are hidden behind the ellipse. 该程序演示这些定义封闭区域的函数的确填充它们，因为这些线隐藏在椭圆背后。
- Soon I dropped behind the rest of the class. 不久我就落在班上其他同志后面了。
- We discovered a secret passage behind the wall. 我们在墙后发现了一个秘密通道。
- It's easy for me to remember all the lines. 对我来说记住这些台词很容易。
- A brief gathering of a team's players behind the line of scrimmage to receive instructions for the next play. 球员的聚集队员们在争球线后短暂的集合，接受对接下来的比赛的战术指导
- I hid the broken plate behind the table. 我把打碎的盘子藏在餐桌后面了。
- The line of flags was slung up between two trees. 一排旗帜悬挂在两棵树之间。
- They are brewing a plot behind the scenes. 他们正在幕后策划一个阴谋。
- The moon peeped out from behind the clouds. 月亮从云层中隐现。
- If this goes wrong your job's on the line. 这件事要是有个一差二错，你就有丢饭碗的危险。
- The play was stopped at the line of scrimmage. 球赛就在起赛线上停了下来。
