大学英语四级/cet4词汇带英文注释(六十二)

　　official [(1) a person with power in an organization; (2) a representative of an organization or government;(3) of or about an office; (4) approved by the government or someone in power]

　　She is an official of our church council. (1)

　　Members of our local parents and teachers organization are electing an official to represent them at the state level. (2)

　　She read about it in the official newspaper. (3)

　　An official statement said the labor strike would begin at midnight. (4)

　　often [many times]

　　How often do you see each other?

　　oil [(1) a thick liquid that does not mix with water and that burns easily; (2) a black liquid taken from the ground and used as fuel]

　　Oil for heating homes costs a lot more this year. (1)

　　The president says America must produce more of the oil it needs. (2)

　　old [(1) not young or new; (2) having lived or existed for many years]

　　He has an old car and an old house. (1)

　　The old tree has been growing for more than three hundred years. (2)

　　on [(1) above and held up by; (2) touching the upper surface of; (3) supported by; (4) about; (5) at the time of]

　　The clock is on the wall. (1)

　　The book is on the table. (2)

　　He is on his feet. (3)

　　The report on the meeting is ready. (4)

　　He left on Wednesday. (5)

　　once [one time only]

　　We had dinner there once.

　　only [(1) being the single one or ones; (2) no more than]

　　He was the only person here. (1)

　　We have only two dollars. (2)

　　open [(1) to start; (2) not closed; (3) not secret]

　　They opened talks. (1)

　　We saw them through the open window. (2)

　　No secrets were discussed at the open meeting. (3)

　　operate [(1) to do work or a job; (2) to cut into the body for medical reasons]

　　Her family operates a car repair business. (1)

　　Doctors will operate on him to remove a cancer. (2)

　　opinion [a belief based on one's own ideas and thinking]

　　What is your opinion on the power crisis?

　　oppose [(1) to be against; (2) to fight against]

　　She opposes cutting trees in national forests. (1)

　　Protesters promised to oppose attempts to put oil wells in wild areas of Alaska. (2)