Everything that should be there is there; to have everything one could wish for.
该有的全都有。形容很齐全。
《宋书·江智渊传》人所应有尽有，人所应无尽无，其江智渊乎！”
The new supermarket is so well-stocked that it has everything you could possibly need.
Learn the next connected idiom: 应有尽有 (yīng yǒu jìn yǒu) → 有条不紊 (yǒu tiáo bù wěn)
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