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
She is constantly in love.
她不停在恋爱。
How much does it cost to go there by ship?
坐船到那里要花多少钱？
Hawkwood made large sums of money in this way.
霍克伍德用这种方法挣了大笔钱。