rills is rill's Plural Form

rill

US [rɪl]
UK 
  • n.【天】(月面)谷;细流
  • v.像小河一般流
  • Web溪流;雨沟
Plural Form:rills  
n.
1.
【天】(月面)谷,沟纹
2.
〈诗〉小河,小溪,细流
v.
1.
像小河一般流

Sample Sentence

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