petitioning
词形变化：
形容词: petitionary | 名词: petitioner | 动词过去式: petitioned | 动词过去分词: petitioned | 动词现在分词: petitioning | 动词第三人称单数: petitions |
petitioning
词形变化：
形容词: petitionary | 名词: petitioner | 动词过去式: petitioned | 动词过去分词: petitioned | 动词现在分词: petitioning | 动词第三人称单数: petitions |