toboggan

详细解释:n. 平底雪橇
vi. 突然下降

词型变化：

名词:tobogganer动词过去式:tobogganed过去分词:tobogganed现在分词:tobogganing第三人称单数:toboggans

英语解释：

名词 toboggan:

a long narrow sled without runners; boards curve upward in front

动词 toboggan:

move along on a luge or toboggan同义词：luge