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
Yes. I'd like that.
要啊！我想看一看。
Last year I studied sociology and political science in school.
去年，我在学校攻读了社会学和政治学课程。
When she was arrested, the detective found out that the shop assistant was her daughter.
她被逮捕后。侦探发现原来那售货员是她的女儿。