为什么没有月经期预测时间了，之前是有的
为什么手机上自带的那个“健康”的 APP 里面经期跟踪没有了经期时间预测，至少有预测经期和排卵期，现在没有了？
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Hello,
You have placed this in an English-based forum. Can you please translate this? That may help you get the answer you need.