Effective gamma-ray activity

effective [ɪ'fɛktɪv]

adj. 有效的;起作用的;实际的，实在的;给人深刻印象; n. [军]现役兵额，有生力量，精兵;

ef出+fect做，制作 +ive形容词后缀 →做出来的 → 有效的

gamma

n. 希腊语的第三个字母(Γ,γ)\\n[医] γ(希腊文第三个字母), 丙种, 微克(千分之一毫克)

ray [rei]

n. （热或其他能量的）射线;光束，光线;微量;伞形花序柄; vt. 放射;照射;（思想，希望等）闪现;发光;

activity [æk'tɪviti]

n. 活动;活跃，敏捷;活动力;教育活动;

act行动，做+ivity状态→活动

Why do you want to resign your position as secretary?

你为什么想辞去秘书的职务？

A good book is a light to the soul.

好书一本，照亮心灵。

We can perhaps forgive those who said the moons of Jupiter were produced by Galileo's spyglass if we recall that in his day, as for centuries before, curved glass was the popular contrivance for producing not truth but illusion, untruth;

如果我们回想一下伽利略之前几个世纪期间，曲面镜一直是一种用于产生幻影而不是产生真象的把戏装置，那么我们就会原谅那些当时把伽利略观察到的木星卫生说成是伽利略用他的小望远镜变出来的人们，