Delta rays
[医] δ[射]线(α粒子在气体所产生的β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;
n. 射线；[俚]日光浴；光线（ray的复数）
🗣️ 情景例句
You are better off waiting'till you get married before doing anything stupid.
你如果想做傻事的话，最好等到结婚后。
Nobody likes grapes more than I do.
我最喜欢葡萄。
I've written a cheque for you.
我给你开了一张支票。