词汇	严酷性
释义	严酷性医severity
随便看	double screw washer double-screw washer double screwy roller grinded-paste machine Double Scroll double-scroll chaotic attractors double scull double-scull double sculling double sculls Double Sculls Final Double Sculls Medal Ceremony Double Sculls Semifinal double scutcher Doubles difference relocation method doubles-doubles doubles down double seal double-seal double-seal bearing double seal coat double-seal coat Double seal door double-sealed double sealed ball bearing double sealed bearing