(1)early technological advancement for mankind
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(2)Send a sudden poo sign to the driver’s class on the front panel of the seat If you send an autograph, you can stop at the nearest shelter or rest area quietly and get on the bus quietly. I want to poo, but I can’t stop you at the next station
(3)It’s a technology that protects human dignity through quiet communication
(4)LOL. The reality is
(5)When I went up to Seoul from Busan, I blamed the driver
(6)How many passengers?I’m in a hurry to go to the bathroom!I got hurt and looked at it, and there was no place for the man to be sad, but he stopped it, covered the passenger’s face, and got on it, and my eyes were focused even then. Just leave the bathroom in advance
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