skateboards
词形变化：
名词: skateboarder | 动词过去式: skateboarded | 动词过去分词: skateboarded | 动词现在分词: skateboarding | 动词第三人称单数: skateboards |
skateboards
词形变化：
名词: skateboarder | 动词过去式: skateboarded | 动词过去分词: skateboarded | 动词现在分词: skateboarding | 动词第三人称单数: skateboards |