Biquadratic
a. 四乘幂的, 双二次的\\nn. 四乘幂, 四次方程式
🗣️ 情景例句
Well, please sit down
嗯， 请坐下来
If you want to be healthy, you have to stop smoking a pipe.
如果你要身体健康的话，必须停止抽烟斗。
He then changed into overalls and spent the next eight hours as a dustman.
然后换上工作服，当8个小时清洁工。