H-rays
[医] 氢核束
🧩 词语组成解析
n. 射线；[俚]日光浴；光线（ray的复数）
🗣️ 情景例句
instead of redesigning the entire system.
而不必重新设计整套系统。
What were you doing when I called you on the telephone?
当我打电话给了你时，你正在做什么？
In five hours' time!
5个小时以后！