plunk  
 verb uk/plʌŋk/ us/plʌŋk/
  (PUT DOWN)      
  [ I or T, usually + adv/prep ] US (UK plonk)(随意地)重重放下 
to put something down heavily and without taking care
  Just plunk the shopping bags (down) on the table, and come and have a cup of tea. 快把你买的东西搁到桌上,过来喝杯茶。 
 Come in and plunk yourselves (down) (= sit down) anywhere you like. 进来随便坐。 
   (INSTRUMENT)      
 [ I usually + adv/prep ] ( also plonk)(大声但技艺不佳地)演奏乐器 
to play a musical instrument, usually not very well but often loudly
  I really enjoy plunking away on the piano. 我很喜欢咚咚咚地弹钢琴玩。 
 plunk  
 noun [ U ] uk/plʌŋk/ us/plʌŋk/
  (SOUND)      
 US (UK usually plonk)(物体落地时的)扑通声 
a hollow sound like that made when an object is dropped heavily onto a surface
  the plunk of a tennis ball 网球落地时嘭的一声 
 plunk       
adverb uk/plɒŋk/ us/plɑːŋk/ (UK usually plonk)
 扑通一声地,嘭地
making a hollow sound like that made when an object is dropped heavily onto a surface
  I heard something go plunk. 我听到什么东西嘭地响了一声。 
 An apple landed plunk on the ground. 一只苹果嘭的一声掉在了地上。