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
He's stepped out of the office for a little while.
他离开办公室刚一会儿。
Time discloses (or reveals) all things.
时间会暴露一切。
I'm not sure. Maybe I'll give her some flowers. What about you?
我还不太肯定。也许我送她一些花儿。你呢？