- thud
 - [θʌd]
 - n. 砰的一声;重击
vi. 砰的一声掉下;发出砰声
vt. 砰地击中 
参考例子
           - 1.The encyclopedia thudded onto the floor.
 - 那本百科全书砰地掉在地板上。
 
- 2.The car hit the child with a sickening thud.
 - 汽车把那个孩子撞了,发出一声可怕的闷响。
 
- 3.The next moment there was a loud thud as the hat flew off his head.
 - 接下去人们听到砰的一声,原来那是帽子从他脑袋上飞下来时发出的响声。
 
英文解释
           - n.
 - 1.a heavy dull sound (as made by impact of heavy objects)
 - 2.make a dull sound
 - 3.strike with a dull sound
 - 4.make a noise typical of an engine lacking lubricants
 
网络释义
               - thud
 - 砰击声; 砰、轰(重物坠地声); 通用变量名; 重击声;
 
- thud into
 - 砰砰地射入...处;
 
- thud against
 - 砰的一声击在...上;
 
- for the thud
 - 那砰然一声;
 
- a low thud
 - 里欧科特;