M寻找最近的包含大写字母M的历史命令行。
M asks for the most recent historical command line that contains an uppercase letter m.
历史学家可能更愿意把这次辩论(debate)的首字母大写，并在之前冠以great。
Historians would capitalize the "d" in debate and place the word "Great" in front of it.
显微镜下：意大利的历史学家们发现通过放大蒙娜丽莎的双眼，可以看到绘上的小型字母和数字。
Under the microscope: Historians in Italy have discovered that by magnifying the eyes of the Mona Lisa painting tiny Numbers and letters can be seen.
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