2020 綠卡抽籤 Diversity Visa Program

綠卡抽籤流程說明（官方）

https://travel.state.gov/content/travel/en/us-visas/immigrate/diversity-visa-program-entry/diversity-visa-submit-entry1.html

2020 綠卡抽籤文件（官方）

INSTRUCTIONS FOR THE 2022 DIVERSITY IMMIGRANT
https://travel.state.gov/content/dam/visas/Diversity-Visa/DV-Instructions-Translations/DV-2022-Instructions-Translations/DV-2022-Instructions-English.pdf