noun 下载 🔗分享 床垫，褥垫。 A pad on which a person can recline and sleep, usually having an inner section of coiled springs covered with foam or other cushioning material then enclosed with cloth fabric. Examples : "The store was selling mattresses at a discounted price for the holiday weekend. " 这家商店在假日周末打折出售床垫。 material item building 与AI对话词汇游戏阅读练习
noun 下载 🔗分享 护坡， 褥垫. A form of retaining wall used to support foundations or an embankment Examples : "To prevent the riverbank from eroding, construction workers laid down interconnected mattresses of rock and wire. " 为了防止河岸被侵蚀，建筑工人们铺设了相互连接的石笼护坡。 architecture building material 与AI对话词汇游戏阅读练习
