拼音：ch ǔ h é hà n jè
解释：楚(项羽)、汉(刘邦)相争时，双方对峙的河界。后来中国象棋盘的双方分界处写有“楚河汉界”。也比喻一般战争的前线。也作“楚界汉河”。
When Chu (Xiang Yu) and Han (Liu Bang) fought, the two sides faced off on the river boundary. Later, the boundary between the two sides of the Chinese chess board was written "Chu River Han boundary". It is also compared to the front line of general war. Also known as "Chu boundary Han River".
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