One of the_____followed by Harold Palmer and his fellow linguists in selecting English words for their teaching is that the words must be most frequently used by native English speakers.

One of the_____followed by Harold Palmer and his fellow linguists in selecting English words for their teaching is that the words must be most frequently used by native English speakers.

criteria/standards
P72
帕尔默和其他语言学家在选择教学所用的英语词汇的一个标准就是:所选词汇必须是以英语为母语的人最经常使用的词汇。