The secret to this game is, no matter what happens, never, ever take your eye off the ball.

这游戏的秘诀在于无论发生甚么事，双眼绝对永远不能离开个球。为了表达“永远”的口气，口语中。

youdao

Now the secret to this game is, no matter what happens, never, never take your eye off the ball.

现在我来告诉你这个玩意的诀窍，无论发生什么，永远永远不要把你的眼睛从乒乓球上移开。

youdao

take your eye off the ball.

VOA: standard.other