B2 [ U ] the process of doing something, especially when dealing with a problem or difficulty(尤指应对问题或困难的)行动;行动过程;行为
More examples
The government is supporting military action.
The richer countries of the world must take action to help the poorer countries.
I hope these arguments have convinced you of the need for action.
The army are said to be ready for action.
It is clear that most women supported this action, from the results of the opinion poll.
B2 [ C ] something that you do行为;作为;所做之事
C2 [ C ] a physical movement(身体的)动作
More examples
She wrote an angry letter to the paper complaining about the council's action.
The four soldiers received medals for their brave actions.
The defendant was depressed and therefore not fully responsible for her own actions.
We will not allow the violent actions of terrorists to change our way of life.
I'm sorry I punched him, it was a reflex action.
B1 [ U ] things that are happening, especially exciting or important things发生的事情;(尤指)令人激动的事或大事
at the place where something important or interesting is happening大事(或趣事)发生的地方
More examples
I like a lowbrow action movie once in a while.
Her latest film is the staple offering of action and comedy which we have come to expect.
It's a typical action film with plenty of spectacular stunts.
At various points in the play, the action tips over from comedy into farce.
He landed a part in a multi-million pound action thriller and made the Hollywood A list.
[ S ] the effect something has on another thing(一物对另一物所起的)作用
More examples
Accumulations of sand can be formed by the action of waves on coastal beaches.
The action of market forces means that the cost of something rises if demand for it rises and the amount available remains constant.
His many years of research made him an expert on the action of snake venom.
The distinctive landscape has been formed by the action of running water on the limestone.
The project will study the action of various drugs on the human body.
C2 [ U or C ] the way something moves or works运作;功能
C1 [ C or U ] specialized law a legal process that is decided in a law court诉讼;起诉
to do something to deal with a particular problem or matter对…采取行动;就…采取措施
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