clean
cleanadjective
UK/kliːn/US/kliːn/
Dạng từ: cleaner · cleanest
NOT DIRTY
A1not dirty
- Are your hands clean?
- I need a clean shirt.
- Keep your room clean and tidy.
NOT HARMFUL
B2not containing harmful substances
- The air is very clean in the mountains.
- We need more clean energy from the sun and wind.
FAIR
B2fair and honest
- It was a clean game with no fouls.
cleanverb
UK/kliːn/US/kliːn/
Dạng từ: cleans · cleaned · cleaning
A1to remove dirt from something
- I clean the bathroom every Saturday.
- Have you cleaned your teeth?
- She's cleaning the windows.