Birk展示了客户如何用信用卡给电子链充电，然后短期租借一辆坚固的街道自行车。
Birk demonstrates how clients will charge up electronic fobs with credit, and release a sturdy street bike for a short-term rental.
Birk展示了客户如何用信用卡给电子链充电，然后短期租借一辆坚固的街道自行车。
Birk demonstrates how clients will charge up electronic fobs with credit, and release a sturdy street bike for a short-term rental.
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