rachet /'rætʃit/ 📖 中文释义 n. 救护车；棘轮, 棘齿 🔗 释义中的汉语词 救护车棘轮 📘 English Definition（英文释义） n mechanical device consisting of a toothed wheel or rack engaged with a pawl that permits it to move in only one direction ← Rachel Louise Carson R 字母词表 rachet up →