Synchronization can be really helpful but also can accidentally erase contacts when the software is uninstalled or when you make a mistake on one end of the sync.
同步可以真正的帮助，而且还可以接触时，不小心删除的软件卸载或当你犯了一个错误，另一端的同步。
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Wind shake my firm heart, words can't hurt me a mighty heart, do not erase my past tough in the future, I will use the knight spirit in the end!