一个月20$的pro订阅通常一个月是差不多够用的，我用了1年了，一直都是使用auto模式，只有一个月比较忙的时候开通了两个pro，但是第二个并没有用完，但是听说过几天计费规则修改了，这就不知道够不够了
The $20/month Pro subscription is usually sufficient for about a month. I’ve been using it for a year now, always on Auto mode. Only in one particularly busy month did I activate two Pro subscriptions, but I didn’t end up using the second one fully. However, I heard the billing rules are changing in a few days, so I’m not sure if it’ll still be enough.