a series of lessons or lectures on a particular subject
a French/chemistry, etc. course
to take/do a course in art and design
to go on a management training course
The college runs specialist language courses .
a period of study at a college or university that leads to an exam or a qualification
a degree course
a two-year postgraduate course leading to a master's degree
a direction or route followed by a ship or an aircraft
飞机航向正确 / 偏离。
The plane was on/off course (= going/not going in the right direction) .
He radioed the pilot to change course .
They set a course for the islands.
the general direction in which sb's ideas or actions are moving
The president appears likely to change course on some key issues.
Politicians are often obliged to steer a course between incompatible interests.
a way of acting in or dealing with a particular situation
There are various courses open to us.
What course of action would you recommend?
The wisest course would be to say nothing.
the way sth develops or should develop
an event that changed the course of history
The unexpected course of events aroused considerable alarm.
part of meal
any of the separate parts of a meal
a four-course dinner
The main course was roast duck.
He set a new course record.
an area of land or water where races are held
She was overtaken on the last stretch of the course.
the direction a river moves in
The path follows the course of the river.
a series of medical treatments, pills, etc.
to prescribe a course of antibiotics
a continuous layer of bricks, stone, etc. in a wall
A new damp-proof course could cost lb1 000 or more.
going through a particular process
The new textbook is in course of preparation.
used with expressions for periods of time
He's seen many changes in the course of his long life.
The company faces major challenges over the course of the next few years.
when enough time has passed
It is possible that in the course of time a cure for cancer will be found.
as things usually happen
In the normal course of things we would not treat her disappearance as suspicious.
used to emphasize that what you are saying is true or correct
‘Don't you like my mother?’ ‘Of course I do!’
‘Will you be there?’ ‘Course I will.’
used as a polite way of giving sb permission to do sth
‘Can I come, too?’ ‘Course you can.’
‘Can I have one of those pens?’ ‘Of course─help yourself.’
used as a polite way of agreeing with what sb has just said
‘I did all I could to help.’ ‘Of course,’ he murmured gently.
used to show that what you are saying is not surprising or is generally known or accepted
Ben, of course, was the last to arrive.
Of course, there are other ways of doing this.
used to emphasize the fact that you are saying ‘no’
‘Are you going?’ ‘Of course not.’
‘Do you mind?’ ‘No, of course not.’
likely to achieve or do sth because you have already started to do it
The American economy is on course for higher inflation than Britain by the end of the year.
to develop in the usual way and come to the usual end
When her tears had run their course, she felt calmer and more in control.
With minor ailments the best thing is often to let nature take its course.
at the right time and not before
Your request will be dealt with in due course.
the act of matching people with suitable jobs or tasks
This expression refers to the fact that horses race better on a track that suits them.
to be just what you would expect to happen or expect sb to do in a particular situation
Starting early and working long hours is par for the course in this job.
to tell a lie or to do sth in order to prevent the police, etc. from finding out the truth about a crime
to continue doing sth until it has finished or been completed, even though it is difficult
Very few of the trainees have stayed the course.
to move or flow quickly
In BrE course is used for a series of lessons or lectures on a particular subject.
a physics course
a course of ten lectures
In NAmE you would say
a physics course/program
a program of ten lectures
In NAmE a course is usually an individual unit that forms part of a longer period of study.
I have to take a physics course/class.
This is called a module in Britain, especially in a college or university.
In BrE course can also mean a period of study at a college or university.
a two-year college course
In NAmE you would say
a two-year college program
of course常用以表示所说的事不足为奇或理所当然。与此同时，由于可能不容易掌握恰当的语调，用of course或of course not回答询问或请求时可能显得不礼貌。因此，用其他词语可能更稳妥。
Of course is often used to show that what you are saying is not surprising or is generally known or accepted. For this reason, and because it can be difficult to get the right intonation, you may not sound polite if you use of course or of course not when you answer a request for information or permission. It can be safer to use a different word or phrase.
‘Is this the right room for the English class?’ ‘Yes, it is.’
‘Can I borrow your dictionary?’ ‘Certainly.’ ( formal )
‘Sure.’ ( informal )
‘Do you mind if I borrow your dictionary?’ ‘Not at all.’
( informal )
如果用of course/of course not回答，听起来就好像是说答案太明显，用不着问。同样，of course不宜用于回应别人对事实的陈述或意见的表达：
If you say of course/of course not it may sound as though you think the answer to the question is obvious and that the person should not ask. In the same way, of course should not be used as a reply to a statement of fact or when someone expresses an opinion.
“天气真好。”“确实真好。” / “是的，真好。”
‘It’s a lovely day.’ ‘It certainly is.’/‘Yes it is.’
“我想你会喜欢这个戏的。”“我肯定会的。” / “是的，这戏看来真棒。”
‘I think you’ll enjoy that play.’ ‘I’m sure I will.’/‘Yes, it sounds really good.’