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
Do you have any better suggestions?
你有更好的提议吗？
To push him down
把他推倒
With a smile the man from downstairs said: I'm sorry to trouble you, comrade.
“对不起，打扰你了，同志。”