Racs
[医][=relative absorption cross section]相对吸收截面，相对吸收断面
🗣️ 情景例句
We can have a birthday party for you, Carl,
我们可以给你举行生日派对 Carl。
My salary doesn't keep up with inflation.
我的工资跟不上通货膨胀。
You said it.
你算说对了。