为外国军队学员画速写

1986年左右，这是我在国防大学外训系为外国军队的学员画的速写，转眼之间已经过去40年，最近找到了珍贵的老照片。

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Around 1986, I made this sketch for foreign military trainees at the external training department of the National Defense University. In the blink of an eye, nearly 40 years have passed. I shared a couple of sketches a few years ago, and recently I came across these precious old photos again.