1.Spring Festival travel rush 春运
China's annual Spring Festival travel rush started on Jan. 19 this year and will last for 40 days.
中国今年的春运在1月19日开始了，将持续40天。
2.passenger flow 客流
Total passenger flow is expected to amount to 2.853 billion including 230 million railway passengers.
总客流有望达到28.53亿人次，其中有2.3亿是铁路客流。
3.migrant（adj.移居的） workers 外来打工者
As the Spring Festival approaches（v.接近）, the migrant workers in Hangzhou, taking their children, started the journey returning home for family reunions.
春节将近，一些在杭州的外来打工者带上他们的孩子踏上了回家团圆的旅途。