X-ray background radiation
[化] X射线本底辐射
🧩 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
these photos in your performing arts section.
你这些表演艺术中心部分的照片。
Have a little wine, punk.
小伙子，喝一点酒吧。
Was the noise a cause of the illness, or were the complaints about noise merely a symptom?
是噪音引起了（精神）病呢，还是（精神）病的症状之一是对噪音的抱怨？