骄傲自满是团结的大敌.Conceit and complacency are the archenemy of unity.骄傲是进步的 大敌.Conceit is the enemy of [ to ] progress.不必要的差异是可用且一致的设计的大敌.Unnecessary variation is the enemy of a coherent, usable design....

“大敌”的英语可以翻译为：formidable enemy，archenemy ...

“大敌”的拼音为：dà dí...