X-ray astronomy
X射线天文学[参较 x-ray]
🧩 词语组成解析
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;
🗣️ 情景例句
I've got six months to go until graduation.
我还有六个月就毕业了。
In vain.
白忙一场。
By the end of next year, they will have finished work on the new stadium.
到明年年底，他们将把新体育场建成。