counting down is count down's Present Participle

count down

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UK 
  • na.(9,8,7,… 0 地)倒数;(火箭发射时)倒数秒数
  • Web脉冲分频;倒计时;倒数计时
Simple Present:counts down  Present Participle:counting down  Past Tense:counted down  
na.
1.
(9,8,7,... 0 地)倒数;(火箭发射时)倒数秒数

Sample Sentence

Definition:
Category:AllAll,OralOral,WrittenWritten,TitleTitle,TechnicalTechnical
Source:AllAll,DictionaryDictionary,WebWeb
Difficulty:AllAll,EasyEasy,MiddleMiddle,HardHard