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
（late的比较级） Later is the comparative of late.
ADV 后来；以后；过后 You use later to refer to a time or situation that is after the one that you have been talking about or after the present one.
He resigned ten years later...
I'll join you later...
ADJ-COMPAR 后来的；以后的 You use later to refer to an event, period of time, or other thing which comes after the one that you have been talking about or after the present one.
At a later news conference, he said differences should not be dramatized...
The competition should have been rescheduled for a later date...
ADJ-COMPAR 晚年的；后期的；末期的 You use later to refer to the last part of someone's life or career or the last part of a period of history.
He found happiness in later life...
In his later years he wrote very little...