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
Do you sell foreign literature?
这儿有外国文学读物卖吗？
It isn't much.
那是微不足道的。
We were so excited, my brother and I, that we did not get to sleep until very late.
我们太激动，以至于我和我弟到很晚才睡得着。