step 名词复数:steps 过去式:stepped 过去分词:stepped 现在进行时:stepping 词形变化: 动词过去式: stepped | 动词过去分词: stepped | 动词现在分词: stepping | 动词第三人称单数: steps | 词义辨析: 同义: vt.vi.走 walk tread pace 同义参见: stride gait footstep footfall protection process thing degree dance