tobogganed 📖 中文释义 n. 平底雪橇vi. 突然下降 🧩 词形变化 变形 pd原形 toboggan 📘 English Definition(英文释义) n. a long narrow sled without runners; boards curve upward in frontv. move along on a luge or toboggan ← toboggan cap T 字母词表 tobogganer →