Biquadratic equation
双二次方程
🧩 词语组成解析
a. 四乘幂的, 双二次的\\nn. 四乘幂, 四次方程式
🗣️ 情景例句
It was all worth it.
那完全值得。
I've got a pain in my back.
我背疼。
but they can still stop you when you are going through the Green Channel and have nothing to declare.
但是，当你通过绿色通道，没有任何东西需要申报时，他们仍可以拦住你。