Original post: https://learnnear.club/how-ncaptcha-fights-spam/#nCaptcha_–_Fighting_Spam_With_web3 (
My Translation: Ứng dụng nCaptcha giúp ngăn chặn spam như thế nào - Google Docs
@cuongdcdev will review my translation
Esitmate cost: 1400 words ~ $70 ~ 62 NEAR (current NEAR price: 1.13)