reservoir

n.水库，蓄水池

rescue, rescuer, research, research into, researcher, reseat, resell, resemblance, resemble, resent, resentful, resentfully, resentfulness, resentment, reserior, reservation, reserve, reserved, reservedness, reservist, reset, resettle, resettlement, reshape, reshuffle, resid, reside, residence, resident, residential, residual, residuary, residue, resign, resignation, resigned, resignedly, resilience, resiliency, resilient,