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 so funny.
他很逗趣。
He's the same as always.
他还是老样子。
A gust of wind swept the bed off the roof and sent it crashing into the courtyard below.
一阵大风把床从屋顶上刮了下来，把它摔碎在下面的院子里。