Although metasurfaces provide a new paradigm for creating unconventional optical properties that are not found in nature, they are still challenged for their specific functionality initially designed owing to their limited tunability [1].Recently, immense efforts have been devoted to transforming static metasurfaces into their active counterparts so as to dynamically control their response by external stimuli in a reversible manner.In principle, an active tunability of the optical characteristics of metasurfaces can be achieved by altering the near-field interactions within or between metaatoms.However, because of the extremely short optical path of photons within the ultrathin metasurface layer, such near-field alterations are too weak to cause any sufficient changes in the far-field radiation properties as required by applications.An efficient solution is to utilize high-quality factor (high-Q) resonant modes with a narrow spectra linewidth, which significantly extend the effective optical path and in turn the photon lifetime in the metaatoms, thus yielding an enhanced modulation to the electromagnetic fields [2].