How long have you prepared your visa interview?

你准备签证准备了多长时间？

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He is collecting information about that school to prepare for his visa interview.

他正在搜集学校资料，准备签证面试。

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To do that,go to chea.org As soon as you are accepted, make an appointment for a visa interview at an American embassy or consulate.

VOA: special.2009.07.16

The U.S. State Department has done "tremendous work" in speeding up the visa process, Freeman said, and posts visa interview wait times on consulate websites.

CNN: Survey: U.S. Customs is driving visitors away

Visa interview wait times have dropped dramatically in Brazil, and now average just two weeks or less in Brasilia, Recife, and Rio de Janeiro, and 35 days or less in Sao Paulo.

WHITEHOUSE: The White House

After we were married, we still had to wait 8 months before even getting an interview so she could get her visa.

FORBES: A Death in Juarez: How U.S. Immigration Policy Is Tearing American Families Apart