I'll know if this elf is good or not

"If you do any work more, you will gain experience. For example, if this wire has electricity, I will know it by touching it with my hands."
Su Bai traveled to the age of elves, and he could obtain detailed information on everything he touched.
Su Bai: It's really cool to open it. Others have to rely on luck to subdue the elf, but I'm different. I'll know if this elf is good or not.
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