drill down

US 
UK 
  • Web向下钻取;向下挖掘;向下展开
Simple Present:drills down  Present Participle:drilling down  Past Tense:drilled down  

Sample Sentence

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