My day of the MCM Hi everyone, Today is so cool, I will join MCM(Mathematical Contest in Modeling) with my classmates .It's a matter of course that strives to bring us succsee.I believe that a hard-working team can always finish our work. This is beyond doubt. We solved a key problem how to express that the chain's relationship with buoy of the ship.in the afternoon, relationship =关系 A relationship +with B A和B的关系 It's a matter of course that A bring sb B A会带给我们B是当然之事