Yun Ling went to the mall to buy a new light bulb for fifty upgrade indexes, and also bought an all-round toolbox.

She stepped lightly on the chair, put on the system's cut-off gloves, and carefully checked the problem with the corridor lampholder, and found that it was only the poor contact that caused the circuit of the interface to be disconnected.

So, she used a cotton swab in her toolbox to dip a small amount of detergent and carefully wiped off the rust on the metal contacts, then adjusted the spring in the old bulb and reinstalled it to the lamp

Chapter 163 of "I Eat Melons While Studying in the Chronicles" Chapter 163 The law does not prohibit it is hitting in the hand, please wait for a while,

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