"有很大优势" can be translated as "have a great advantage." 例如:

"他们在这场比赛中有很大优势。" (They have a great advantage in this game.)

"我们因为拥有先进的技术而拥有很大的优势。" (We have a great advantage due to our advanced technology.)

希望这些信息对你有帮助。