GW Ori is a hierarchical triple system with a rare circumtriple disk .
We present Atacama Large Millimeter/submillimeter Array ( ALMA ) observations of 1.3 mm dust continuum and 12 CO J = 2 - 1 molecular gas emission of the disk .
For the first time , we identify three dust rings in the GW Ori disk at \sim 46 , 188 , and 338 AU , with estimated dust mass of 74 , 168 , and 245 Earth masses , respectively .
To our knowledge , its outermost ring is the largest dust ring ever found in protoplanetary disks .
We use visibility modelling of dust continuum to show that the disk has misaligned parts , and the innermost dust ring is eccentric .
The disk misalignment is also suggested by the CO kinematics .
We interpret these substructures as evidence of ongoing dynamical interactions between the triple stars and the circumtriple disk .