B: Two hours.That area is a little backward.

两个小时。那地方有点团塞。

youdao

The negatively sloped portion of a supply curve like that in Figure 5.1(b) is frequently referred to as a "backward-bending" supply curve;

图5.1（b）中的供给曲线的负斜率部分就是通常所谓的“向后弯曲”的供给曲线；

youdao

The negatively sloped portion of a supply curve like that in Figure 5.1(b) is frequently referred to as a "backward-bending" supply curve;

图5.1（b）中的供给曲线的负斜率部分就是通常所谓的“向后弯曲”的供给曲线；

youdao