My heart had started to thud, and my mouth was dry.我的心开始咚咚跳，嘴里发干。I heard the regular thud thud thud of running shoes behind me.我听到身后跑鞋有节奏地噔噔噔地响着。She tripped and fell with a sickening thud.她绊了一下，重重地摔倒在地。...
Then he heard a piercing scream echoing down the deep well, ending in a dull, dead thud.接着他听见深井里回响起一声刺耳的尖叫，然后是砰的一声闷响，再之后就什么也听不见了。She tripped and fell with a sickening thud...她绊了一下，重重地摔倒在地。The encyclopedia fell to the flo...