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- It had been used for practical ends, to identify elements and to unravel radioactive decay chains. 已将其用于实践的目的，去鉴别元素和阐明放射性衰变系。
- 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 chain has fallen foul of plants in the water. 链条已和水中的植物缠绕在了一起。
- She has a gold chain about her neck. 她在脖子的周围挂着一根金项链。
- 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。
- The dentist could detect no decay in her teeth. 牙医检查了她的牙，未见有龋齿。
- The chain has run foul of some plants in the water. 铁链缠在水中的一些植物上。
- Cavities in teeth are caused by decay. 牙齿的蛀洞是由蛀蚀造成的。
- She wore a silver chain around her neck. 她脖子上戴着一条银项链。
- These two pieces of the chain hook together. 这两个链环套在一起。
- Human remains, especially after cremation or decay. 骨灰人的遗骸，尤指在火化或腐烂后
- He detached a link from a chain. 他从链子上拆下一个链环。
- The anchor chain took charge and ran out. 锚链失去控制而滑了出来。
- A source of spreading corruption or decay. 腐败的原因传布腐败或腐朽的根源
- A pendant worn on a chain around the neck. 垂饰挂在脖子项链上的垂饰物
- Breakdown or decay of organic materials. 腐烂; 分解指有机物的分解或腐败
