求翻译：此后的时间里,美国成为了欧洲大陆居民的移民天堂,数以万计的捷克人、斯洛伐克人、波兰人、南斯拉夫人等等,在20世纪上半叶为了逃避政治迫害而来到美洲大陆。是什么意思？

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Since then, the United States has become the continent of residents to 10,000 immigrants' paradise, and a number of Czech, Slovak, Polish, and Yugoslav people, etc. , in the first half of the 20th century in order to escape from political persecution, and to the North American continent.

Hereafter in the time, US has become the Europe continent inhabitant's immigration heaven, thousands Czech, Slovakian person, Pole, Yugoslav and so on, in order to evade the witch hunt in the first half of 20th century to arrive the Americas mainland.

After that time, in the United States a European mainland Chinese immigrant haven, tens of thousands of Czech people, Slovakia people, Poland people, the Yugoslav people, and so on, in the 20th century to escape political persecution and came to America in the first half.

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