You include with the post form a visual test of some sort that's easy for most people but tricky for a robot.
做法是在post表单包含某种可视测试，这种测试对人而言很容易，对机器人程序而言则很复杂。
You include with the post form a visual test of some sort that's easy for most people but tricky for a robot.
做法是在post表单包含某种可视测试，这种测试对人而言很容易，对机器人程序而言则很复杂。
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