Therootofmostluckynumberscanbefoundinreligion.God,forexample,issaidtohavecreatedtheworldin 7 days.Untilthe 1800s,thereweresevenknownplanetsinthesolarsystem(太阳系).Seveniseventheusualnumberofspotson a ladybugandladybugsareconsideredgoodluckthemselves. "4' meansbadluckinAsia.Forexample,the(2)___ of "...