After hitting the threshold, you're now told your rate limit has been exceeded.
在达到上限阈值后，你会被告知已经超出了速率限制。
TED演讲（音频版） 2020年5月合集
So that may be the rate limiting step.
所以这可能是速率限制步骤。
英语百科
Rate limiting
（重定向自Rate limit）
In computer networks, rate limiting is used to control the rate of traffic sent or received by a network interface controller. It can be induced by the network protocol stack of the sender due to a received ECN-marked packet and also by the network scheduler of any router along the way.