Vocabulary learning English is an important part of learning, and inefficient learning the vocabulary become a common constraint for primary school students to improve their English scores.

词汇学习是英语学习的一个重要组成部分，低效的词汇学习成为普通小学生提高英语学习成绩的掣肘。

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Using boring vocabulary learning methods, therefore, is doubly bad: it is inefficient and it weakens motivation.

因此，利用无聊的词汇表来记忆单词的方法有两个缺点：既没有效率又减弱了积极性。

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The lack of researching on moral learning is one of important reasons why moral education is inefficient.

德育实效性不高的重要原因之一是道德学习研究的缺失。

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The lack of financial accountability leads to leakage, mismanagement of resources and inefficient use and it will ultimately affect quality learning.

UNESCO: Accountability