单词rat-a-tat
n.: 砰砰网络: 砰砰声；敲击声；叩击声
砰砰〔敲门声等〕
He flips a switch. A "rat-a-tat-tat" sound, like that of a staple gun, echoes through his helmet, and fatigue abruptly flees his mind.
他打开一个开关，一阵「拉搭搭搭」好像打钉枪发出的声响在他的头盔里迴荡，疲劳则迅速从他的脑子远去。