melting pot
noun [ C usually singular ] uk/ˈmel.tɪŋ ˌpɒt/ us/ˈmel.t̬ɪŋ ˌpɑːt/
大熔炉（指许多不同的人及思想共存、融合的地方）
a place where many different people and ideas exist together, often mixing and producing something new
a cultural melting pot 文化大熔炉
New Orleans is one of the great melting pots of America. 新奥尔良是美国重要的思想文化融汇地之一。