Unit of radioactivity
[医] 放射能单位, 辐射能单位
🧩 词语组成解析
unit
['ju:nit]
n. 单位，单元;装置;个体;[数]单位数;
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
radioactivity
[,redɪoæk'tɪvəti]
n. 放射（性）;辐射能;
radio光线+act行动，做+ivity表示情况、状态、“...性”、“...力” →放射性；[核] 放射能力；[核] 放射现象
🗣️ 情景例句
I don't think he is cut out for the job.
我认为他不适合做那份工作。
Nothing is given so freely as advice.
劝人最容易。
Mr and Mrs Shute were very sad. But what could they do?
舒特先生和夫人非常难过。但他们有什么办法呢？