subserve 过去式:subserved 过去分词:subserved 现在进行时:subserving 词形变化: 动词过去式: subserved | 动词过去分词: subserved | 动词现在分词: subserving | 动词第三人称单数: subserves | 词义辨析: 同义参见: promote