Luis von Ahn, an assistant professor at Carnegie Mellon who was part of the original CAPTCHA team, estimates that people fill out close to 200 million CAPTCHAS a day.
卡内基·梅隆大学助理教授Luis von Ahn曾是CAPTCHA小组的成员，他估计每天约有2亿个CAPTCHA被用户填写。
Luis von Ahn, an assistant professor at Carnegie Mellon who was part of the original CAPTCHA team, estimates that people fill out close to 200 million CAPTCHAS a day.
卡内基·梅隆大学助理教授Luis von Ahn曾是CAPTCHA小组的成员，他估计每天约有2亿个CAPTCHA被用户填写。
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