Why is �?rather than �?used to negate an action in the past in 过去三天为什么你不回我的电话? Next to develop an account, it needs an present account ? I mean I have a brand new entire node absolutely synced ? How can I build an account to begin with because as per the https://triplexdirectory.com/listings12780583/facts-about-%E6%B3%A2%E5%9C%BA%E9%9D%93%E5%8F%B7%E7%94%9F%E6%88%90-revealed