As luck would have it意思是“无巧不成书;可巧;幸运地”,例如:As luck would have it, I was out when he called. 不巧得很, 他来访时我正好外出了.As luck would have it , he was away that day. 他偏巧那天不在.As luck would have it, he had just left when I arrived. 我到那儿时, 不巧他刚走.