smoothness
词形变化：
副词: smoothly | 形容词比较级: smoother | 形容词最高级: smoothest | 名词: smoother | 动词过去式: smoothed | 动词过去分词: smoothed | 动词现在分词: smoothing | 动词第三人称单数: smoothes |
同义词：
facility | flatness | evenness | levelness | ease | efficiency | charm | persuasiveness | glibness | slickness | softness | silkiness | suavity | blandness | fluency | eloquence | suaveness |
反义词：
词义辨析：
同义参见:
facility