屏息bǐnɡ xī
参考答案：
屏往气息，不喘气。
将方程3x（x-1）=2（x+2）+8化为一般形式为______，方程x（x-3）=0的解为______．
—Madam, the two pairs of shoes are the new arrival of this season.
—Well, I like _______. Do you have another pair?
A．either
B．neither
C．both
D．none
