400 bc造句

• After all these concepts go back to 400 bc
  毕竟那都是些公元前400年前的概念了。
• The second wave were the brythons - came about 400 bc
  第二次高潮是约公元前400年布列吞人的抵达。
• Early olympics each lasted between one and three days , but from about 400 bc , the festival was a full five days as more and more events were added into the games
  早期的奥运会要持续一至三天，但大约从公元前400年开始，比赛项目不断增加，大会要持续整整五天。