It means "成语(cheng yu )" in Chinese. It is formed by four word.
RFP is not an idiom. It's an abbreviation.
It's not really an idiom. It means "what are you thinking about."
It is not an idiom, it means your nose is itching.
maybe there is a little mistake can yu(参与) in English means participate in but i don't know what Chan yu mean I am Chinese, I came from Beijing. Do you want to be my penfriend? Because I want to study English, and I can teach you Chinese too. You can send mail to me : bxwenqi@gmail.com
idiom means expression like a page in a book
It's not an idiom. It means the tip of your nostril.
"Sieve" is not an idiom. See the related link.
This is not an idiom. It is a measurement. $100,000 is how you write it in numbers.
Simply its mean a bully.
The idiom your blood is boiling usually means that you are mad/furious.
Nothing. You have left out part of the idiom. Perhaps you mean "your hands are tied," which means that you have no power to do anything in a given situation.
"Penniless" is not an idiom. It means that you don't have a penny to spend. It's used as an exaggeration to mean that you don't have any money.