4/17/2026ZH
跨越鸿沟:如何应对F-1学生身份转换及关键的I-20开始日期
Understand USCIS rules for F-1 Change of Status (COS), including the 30-day program start date window and the updated policy on "bridging" filings.
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Browse by Topic: 美国移民局
4/17/2026ZH
绿卡之旅的两个阶段:理解USCIS审理与领事馆签证暂停之间的区别
Learn the key difference between USCIS petition processing (I-130/I-140) and Department of State visa issuance, especially during country-specific bans or pauses.
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