Tik Tok's signature is enough once, which means that you only need to set your personal signature once and you can always use it without resetting it. According to relevant public information, Tik Tok's signature used to be a network term and often appeared on social media. Behind this sentence is a pursuit of convenience and simplicity, and it also reflects the needs of today's social media users for convenience and speed. This sentence can also be extended to: you only need one effort or some changes to continue to benefit or achieve your goals.