students feel a chill down their spines.All day long, the students of Class A went to the mech bay and helped the mech technicians with their maintenance work.Mech construction and maintenance. They s...t and learned that the shop had been open for decades and always dealt fairly with customers. So, she nodded in agreement to Auntie Wen's proposal.Wen Lu excitedly paid the deposit and set an appointm...