Definition: used to mean that something is happening that does not usually happen Level: B2
这次，公交车竟然准时到了。
___For ___once, the bus came on time.
这次，我们被魔法拥抱了。
___For ___once, we were embraced by magic.
这次，她做饭什么都没烧焦。
___For ___once, she cooked dinner without burning anything.
