Definition
To lose focus or attention on something that one is actively engaged in or responsible for.
分心
We can't afford to take our eye off the ball during the final stage of the project; we must not be careless about any detail.
我们不能在项目的最后阶段掉以轻心；我们必须对任何细节都保持警惕。
The coach warned the players not to take their eye off the ball, even when they were leading the game.
教练警告球员们即使在领先的情况下也不能掉以轻心。
When conducting a financial audit, one cannot take their eye off the ball, even with minor discrepancies.
在进行财务审计时，即使遇到小的差异也不能掉以轻心。