円滑

(1)smooth and unconstrained in movement; "a long, smooth stride"; "the fluid motion of a cat"; "the liquid grace of a ballerina"

(2)運動において滑らかで無拘束の

(3)lacking obstructions or difficulties; "the bill's path through the legislature was smooth and orderly"

(4)障害または困難を欠くさま

(1)