Something that is clean is free from dirt or unwanted marks.
You say that people or animals are clean when they keep themselves or their surroundings clean.
A clean fuel or chemical process does not create many harmful or polluting substances.
If you clean something or clean dirt off it, you make it free from dirt and unwanted marks, for example by washing or wiping it. If something cleans easily, it is easy to clean.
If you clean a room or house, you make the inside of it and the furniture in it free from dirt and dust.
If you describe something such as a book, joke, or lifestyle as clean, you think that they are not sexually immoral or offensive.
If someone has a clean reputation or record, they have never done anything illegal or wrong.
A clean game or fight is carried out fairly, according to the rules.
If you describe a flavour, smell, or colour as clean, you like it because it is light and fresh.
A clean sheet of paper has no writing or drawing on it.
If you make a clean break or start, you end a situation completely and start again in a different way.
Clean is used to emphasize that something was done completely.
A clean shape is simple and regular, with definite, smooth edges.
You can describe an action as clean to indicate that it is carried out simply and quickly without mistakes.
If you come clean about something that you have been keeping secret, you admit it or tell people about it.
16. to clean up your act -> see act
a clean bill of health -> see bill
to make a clean breast of it -> see breast
to keep your nose clean -> see nose
a clean slate -> see slate
to wipe the slate clean -> see slate
a clean sweep -> see sweep
clean as a whistle -> see whistle
相关词组：clean outclean upclean up after本文链接:http://www.zszt.net/znjj/6183.html