handbooks is handbook's Plural Form

handbook

US [ˈhæn(d)ˌbʊk]
UK ['hæn(d).bʊk]
  • na.手册;〈美〉赛马手册
  • Web参考书;便览手册;圣经手册
Plural Form:handbooks  
na.
1.
手册,便览,指南;〈美〉赛马手册

Sample Sentence

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