Secondary rays
[医] 次生射线, 次级射线
🧩 词语组成解析
secondary
['sɛkəndɛri]
adj. 第二的，中等的;助手，副手;中等教育的;间接的;
n. 副手，代理人;[天]双星中较小较暗的一个，卫星;[语]次重音;
second第二+ary...的→第二的
n. 射线；[俚]日光浴；光线（ray的复数）
🗣️ 情景例句
I'm a foreign student, and I'd like to make some new friends.
我是个外国学生， 我想交几个新朋友。
They had to call in a heart specialist.
他不得不请一位心脏病专家。
They were expecting their sixth child and were faced with even more pressing economic problems.
第6个孩子即将问世，他们面临着更为严峻的经济问题。