句子变长不等于展开：同一段落的三次修改

题目讨论更长假期是否能改善员工表现。下面三版使用同一个论点。

第一版：只有结论

Longer holidays can improve employees' performance because they reduce stress.

立场清楚，但“减压”怎样改变工作表现仍由读者自己补。

第二版：补上作用过程

Longer holidays can improve employees' performance because time away from routine duties allows them to rest and return with greater concentration. This can be especially useful in jobs where small lapses in attention lead to repeated corrections.

新增的信息不是更长的形容词，而是从休息到专注、再到减少返工的过程。同时加了适用条件，没有声称所有工作都会同样受益。

第三版：让场景验证机制

Longer holidays can improve employees' performance because time away from routine duties allows them to rest and return with greater concentration. This can be especially useful in jobs where small lapses in attention lead to repeated corrections. For example, an editor returning to a complex report after a proper break may notice inconsistent figures and unclear wording that had become difficult to see during a long period of continuous work. In such cases, recovery time supports performance by improving the quality of attention brought back to the task.

编辑审阅报告是一个假设场景，没有拿虚构百分比冒充证据。最后一句也没有机械重复开头，而是明确回扣：假期的价值来自恢复后的注意质量。

三版的差别不在字数，而在读者需要自行脑补的部分越来越少。扩写时优先补机制、条件和具体场景；若只是增加同义表达，段落再长也没有真正展开。