例句與造句

1. Some of the best known trace mineral deficiencies include : manganese deficiency.
2. Fertilizers are, in fact, more likely to solve trace mineral deficiency problems than cause them : In Western Australia deficiencies of zinc, copper, manganese, iron and molybdenum were identified as limiting the growth of broad-acre crops and pastures in the 1940s and 1950s.
3. It's difficult to find trace mineral deficiency in a sentence. 用trace mineral deficiency造句挺難的