Beta rays
[医] β[射]线
🧩 词语组成解析
n. 希腊字母表的第二个字母\\n[医] β(希腊文的第二个字母), 乙种
n. 射线；[俚]日光浴；光线（ray的复数）
🗣️ 情景例句
What is the cost?
费用是多少？
Mike found it difficult to adjust at first, but he's used to studying at Harvard now.
刚开始迈克发现很难适应在哈佛的学习，但现在他已经习惯了。
The weather today is rather wet.
今天下雨。