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- Radioactive ray is material thing. 放射线是实际的物质。
- Radium and uranium are radioactive elements. 镭和铀是放射性元素。
- A certain discharge of possible radioactive effluent. 一定量的可能有放射性的废水。
- There are many needy families in our village. 我们村子有很多贫困家庭。
- The poor families survived on relief. 这些贫穷家庭靠救济生存。
- A radioactive isotope of carbon, especially carbon 14. 放射性碳碳的一种放射性同位素，尤指碳14。
- A fund will be set up for the dead men's families. 抚恤死难工人家属的基金会即将建立起来。
- Most of these children come from broken families. 这些孩子中的多数人来自婚姻破裂的家庭。
- The two families live on adjacent streets. 这两家住在两条相邻的街上。
- The war separated many families. 战争使许多家庭妻离子散。
- A naturally occurring or artificially produced radioactive element. 放射性元素自然产生或人为制造的放射性元素
- Both families are reasonably well heeled and comfortably off. 两家人都相当有钱，生活都过得很舒适。
- A radioactive compound used in radiotherapy or diagnosis. 放射性药剂一种用于放射性治疗或诊断的放射性化合物
- One of leading families has show a rivalrous attitudes the others. 主要家族中的一家曾封其他家族显示敌对的态度。
- The immediate product of the radioactive decay of an element. 继承元素某种元素放射性衰变的直接产物
- Isotopes that emit radioactive particles; a stove emitting heat. 发射出放射性粒子的同位素; 发出热量的炉子
- Many rich families are brought low by the financial crisis. 很多富户都因那次金融危机而家道中落。
- The radioactive waste should be buried deeply under the ground in sealed box. 这些放射性废物应该放在密封的箱子里深埋在地下。
- A large proportion of the families round here own bicycles. 这一带相当大一部分家庭都有自行车。
- Most of the families in our road are on social security. 我们这条街多数家庭都享受社会福利。
