Delta ray
[电] σ射线
🧩 词语组成解析
delta
['deltə]
n. 希腊语字母表第四字母δ;（河流的）三角洲;[数]变量增量;
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
There! You look very attractive.
天 你看起来真帅
A bad custom is like a good cake, better broken than kept.
坏习惯像鲜馅饼，分食要比保存好。
'A fire extinguisher, my dear,' answered the Ambassador drily.
“灭火器弄的，亲爱的，”大使冷冷地回答，