valuable

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valuable

1.Dongba culture is one of the valuable relics of（）ethnic minority.2.If you husband something valuable, you use it （） .3.How can you gain valuable on-the-job experience?4.Dongba culture is one of the valuable relics of ______ ethnic minority.5.“There is much in your book that is original and valuable－－-but what is original is not valuable, and what is valuable is not or6.The most valuable thing a trade fair provides is opportunity for future communication