团结带领全国各族人民在中国这片广袤的土地上绘就了人类发展史上波澜壮阔的壮美画卷 - It has united and led the people of all ethnicities in the country *in painting* a magnificent picture in the history of human development on the vast expanse of China.
A seemingly minor distinction but a very important one from the perspective of the CPC
团结带领全国各族人民在中国这片广袤的土地上绘就了人类发展史上波澜壮阔的壮美画卷 - It has united and led the people of all ethnicities in the country *in painting* a magnificent picture in the history of human development on the vast expanse of China.
A seemingly minor distinction but a very important one from the perspective of the CPC