Complex sentence: According to official reports, the Xiongnu lost 80,000 to 90,000 men, and out of the 140,000 horses the Han forces had brought into the desert, fewer than 30,000 returned to China.
Split into simpler sentences: According to official reports, the Xiongnu lost 80,000 to 90,000 men. And out of the 140,000 horses the Han forces had brought into the desert, fewer than 30,000 returned to China.