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
Oh, it's a sweet-sounding name for a sweet little boy.
噢， 好一个甜美悦耳的名字 ，配个甜美的小孩。
It's nice to see you again. Have you changed jobs?
又见到你很高兴。你换了工作了吗？
Come in, please!
请进！