求翻译：他不仅从全国调来七十多万“刑徒”，还从山东、河南等地征来大量民夫。修建期间，秦始皇还下诏令李期提前征集数千对童男童女准备为他殉葬是什么意思？

Not only did he redeployed from the country of more than 700,000 "punishment", also from Shandong, Henan and other symptoms to a large number of Conscript. During construction, Qin Shi Huang also enrolling thousands of early on in the Dahir of pure youth and maiden ready to his immolation