求翻译：本报讯 “春运”这种几十亿人次的大规模流动昨日正式开启，40天时间内，将有31.58亿人次流动。这是中国历年春运中出行人数首次突破30亿人次。是什么意思？

WASHINGTON "Spring Festival" this massive flow of billions of people officially opened yesterday, 40-day period, there will be 3.158 billion people flow. This is the Spring Festival in China over the years the number of trips for the first time broke through 30 million passengers.

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Newspaper news “spring festival transportation” this kinds of several dozens hundred million people of large-scale flowing yesterday official opening, in 40 days time, some 3,158,000,000 people of flowing.This is in the Chinese all previous years spring festival transportation goes on a journey the

Report from the "Spring Festival" such a large-scale flow of the billions of people formally opened yesterday, within 40 days, 3.158 billion people flow. This is the number of trips during Spring Festival in China over the 3 billion people for the first time.