He doesn't at first hear the horn fail to blow, and then later, when a truck pulls up behind him, he fails to hear a horn that does blow: He was looking at the sign, and he didn't hear the horn.

在一开始,是他没有注意到这点，到后来卡车停在身后时，他连响的喇叭都听不到了：,“他看着那个标牌，以至于没听到喇叭声。

耶鲁公开课 - 1945年后的美国小说课程节选