Specific radioactivity

specific [spə'sɪfɪk]

adj. 明确的;特种的;具体的;[免疫学]特效的; n. 特效药;特性;细节;显著的性质，特性;

speci种类+fic带来→带来外观的→具体的

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

The council will not permit you to build here.

委员会不会允许你们在这一带搞建筑。

What time are you going?

你什么时候走？

Speak to your father and tell him that you are already doing well in the subject of your choice. If you like, remind him that many women have chosen to work in fields that were not used to accepting women. You can point out that Florence Nightingale opene

和你的父亲谈谈，告诉他你在所选的学科领域里已经做得很不错了。如果你愿意的话，请提醒他，许多女子已经选择了过去惯于不接受妇女的部门去工作了。你可以向他指出，弗洛伦斯·南丁格尔开辟了护理学，居里夫人为妇女从事科学开创了天地。恳求你父亲和你的老师谈一谈，他会发?2283