The regular work of Mars is four breaks, so it is not easy to change classes, because the analogy you made is completely impossible if you have to change classes with it. Mars operators operate machines. I worked as an internal contractor some time ago, that is, the outsourcer you mentioned here. The outsourcer mainly does some mindless work, such as packaging, washing molds and emptying boxes. Mars is great. I suggest you invest in Worry-Free Future or Zhilian, because the official job recruitment of Mars is outsourced to Ke Rui International, and it is useless to send it directly to Mars.