您要查找的是不是：
- What made the Roman Empire decay? 罗马帝国为何衰亡？
- Old civilization may fall into decay. 古老的文化可能会渐渐衰落下去。
- The empty house has fallen into decay. 那座空房已成一片颓垣。
- The tree exhibited signs of decay. 那棵树显示腐蛀的迹象。
- The building is made of hydraulic cement. 大楼是用水硬水泥建造的。
- cemental decay [医] 牙骨质腐蚀
- His mental decay is distressing. 他的智力衰退令人苦恼。
- Growth and decay are vital processes. 生长和衰亡是生命过程。
- Cement output next year would be57 million tons. 明年的水泥产量(将)有5700万吨。
- The dentist could detect no decay in her teeth. 牙医检查了她的牙，未见有龋齿。
- Cavities in teeth are caused by decay. 牙齿的蛀洞是由蛀蚀造成的。
- The front of the brick house was faced with cement. 这栋砖房的正面抹了一层水泥。
- Our object is to further cement trade relations. 我们的目标是进一步加强贸易关系。
- Concrete is made of cement, sand, stone and water. 混凝土是由水泥，砂子石头和水混合做的。
- Human remains, especially after cremation or decay. 骨灰人的遗骸，尤指在火化或腐烂后
- The sack of cement hit the ground with a thump. 水泥袋砰的一声落在地上。
- The cement will set in a few hours. 水泥几小时后就会凝固。
- A source of spreading corruption or decay. 腐败的原因传布腐败或腐朽的根源
- Breakdown or decay of organic materials. 腐烂; 分解指有机物的分解或腐败
- In truth, moral decay hastened the decline of the Roman Empire. 事实上，道德沦丧加速了罗马帝国的衰亡。
