-
由于很多营养素的平均需要量不能很好的确定,所以很难评价rda。
Since the mean requirement for many nutrients is not known with certainty, it is often difficult to establish an RDA.
youdao
-
由于很多营养素的平均需要量不能很好的确定,所以很难评价rda。
Since the mean requirement for many nutrients is not known with certainty, it is often difficult to establish an RDA.
youdao