自2010年至今的四级考试中， 共出现过 次
自2010年至今的六级考试中， 共出现过 次
ADJ-GRADED 精确的;正确的;确切的 Exact means correct in every detail. For example, an exact copy is the same in every detail as the thing it is copied from.
I don't remember the exact words...
The exact number of protest calls has not been revealed...
ADJ （用于名词前表强调）刚好的，确切的 You use exact before a noun to emphasize that you are referring to that particular thing and no other, especially something that has a particular significance.
I hadn't really thought about it until this exact moment...
Do you really think I could get the exact thing I want?...
ADJ-GRADED 一丝不苟的;严谨的 If you describe someone as exact, you mean that they are very careful and detailed in their work, thinking, or methods.
Formal, exact and obstinate, he was also cold, suspicious, touchy and tactless.
VERB 强求;勒索;强迫 When someone exacts something, they demand and obtain it from another person, especially because they are in a superior or more powerful position.
Already he has exacted a written apology from the chairman of the commission...
They, too, would be likely to exact a high price for their cooperation.
VERB 实施，施加（报复） If someone exacts revenge on a person, they have their revenge on them.
She uses the media to help her exact a terrible revenge.
VERB 对…有害；使…付出代价 If something exacts a high price, it has a bad effect on a person or situation.
The sheer physical effort had exacted a heavy price...
The strain of a violent ground campaign will exact a toll on troops.
PHRASE 确切地说;精确地说 You say to be exact to indicate that you are slightly correcting or giving more detailed information about what you have been saying.
A small number — five, to be exact—have been bad...
I consider myself to be a liberal democrat, or to be more exact, a democratic liberal.