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'd like to order a hamburger and fries.
来个汉堡包和薯条吧。
They fought for the sake of their country.
他们为国而战。
I'm reading a book.
我在读书。