So far, research suggests it may be possible to learn about the tone and pronunciation of a language or even the meaning of words while sleeping, although it is to a weaker level than what we do during the day without noticing.

到目前为止，研究表明，在睡觉的时候学习一门语言的语调和发音，甚至是单词的意思是可能的，尽管这比白天无意识学习的效果要差。

youdao

With the prevailing of communicative language teaching, grammar teaching has been becoming weaker and weaker, which in turn causes students' failing to further English learning.

随着交际教学法的盛行，大学英语语法教学日益削弱，直接影响到学生英语学习水平的提高。

youdao

It proposed 15 changes, including pointing out that the language about the 45 minutes claim was weaker in the main text than in the summary.

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