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
N-COUNT 瞬息;顷刻;刹那 An instant is an extremely short period of time.
For an instant, Catherine was tempted to flee...
The pain disappeared in an instant.
N-SING (某一)时刻 If you say that something happens at a particular instant, you mean that it happens at exactly the time you have been referring to, and you are usually suggesting that it happens quickly or immediately.
At that instant the museum was plunged into total darkness...
In the same instant he flung open the car door.
PHR-CONJ-SUBORD 一…(就) To do something the instant something else happens means to do it immediately.
I had bolted the door the instant I had seen the bat.
ADJ 立即的;即刻的 You use instant to describe something that happens immediately.
Mr Porter's book was an instant hit...
He had taken an instant dislike to Mortlake.
ADJ (食品)已配制好的，调制快速方便的，速溶的 Instant food is food that you can prepare very quickly, for example by just adding water.