smoothness

n. 柔滑,平滑,平坦

smog, smoke, smoke-bomb (also `smoke-grenade), smoke-screen, smoke-stack, smokeless, smoker, smokiness, smoking, smoking-jacket, smoking-room, smoky, smolder, smooch, smooth, smooth out, smooth over, smooth-tongued (also ,smooth-spoken), smoothie (also smoothy), smoothly, smorgasbord, smote, smother, smoulder (US smolder), smudge, smug, smuggle, smuggler, smuggling, smugly, smugness, smut, smuttiness, smutty, snack, snack-bar, snaffle, snag, snail, snake,