Rule out

Generally speaking, 'rule out' is a phrasal verb which means

Interjections.

General usage of interjections comprises a significant part of language culture.
Short in size, but remarkably eloquent, interjections usually represent a serious challenge for English learners as they can dramatically change the meaning of the whole utterance. Alternatively, mastering this language area will definitely enrich the vocabulary and provide fluency and language confidence. And last, but not least, interjections make up a huge part of on-line chats.

Advanced+ Exam Resources

This entry is for those preparing for advanced+ level exams.  Apart from conventional CAE, CPE, IELTS etc. courses, the following sites can be of great help in mastering all the four skills.

English Idioms Related To Business

English idioms relating to BUSINESS - WORK
Have an ace up your sleeve.	If you have an ace up your sleeve, it means that you have   something in reserve with which you can gain an advantage.