quickly going away and passing out of sight; "all I saw was his vanishing back"
verb [vt. 及物动词]消失;突然不见(vanish 的现在分词)
I am not precisely sure how long I stayed frozen in that position, but the next thing I recall is the apparition vanishing before my eyes. 我不能精准地确定我在那个位置上呆了多久,但我记得的下一件事就是那个幽灵在我眼前消失了。