black holes is black hole's Plural Form

black hole

US 
UK 
  • na.【天】黑洞;土牢;(军营中的)禁闭室
  • Web何谓黑洞;多个黑洞写为;黑洞征
Plural Form:black holes  
na.
1.
【天】黑洞
2.
土牢;(军营中的)禁闭室

Sample Sentence

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