understudies
词形变化:
名词复数: understudies | 动词过去式: understudied | 动词过去分词: understudied | 动词现在分词: understudying | 动词第三人称单数: understudies |
understudies
词形变化:
名词复数: understudies | 动词过去式: understudied | 动词过去分词: understudied | 动词现在分词: understudying | 动词第三人称单数: understudies |