swiftness

n. 迅速,快

sweet-william, sweetbread, sweeten, sweetener, sweetening, sweetheart, sweetie, sweetish, sweetly, sweetness, swell, swelling, swelter, sweltering, swept, swept-back, swept-wing, swerve, swift, swiftly, swig, swill, swim, swim-suit, swimmer, swimming, swimming-bath, swimming-pool, swimming-trunks, swimmingly, swindle, swindler, swine, swine-fever, swing, swing bridge, swing shift, swing-boat, swing-door, swing-wing,