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 can really slam it down.
他可真能喝。
You're welcome.
别客气。
Finally, turn off the lights and lock the door.
最后，关上灯，锁好门。