However, vocabulary has proved to be a problem that often ______ our understanding of the new information.
查看答案
Therefore, in order to ______ our ability in listening, words that frequently appear in some popular science ______ should be carefully studied.
Besides, if we have a close examination of the ______ reports, we may find that they are often divided into different parts or paragraphs on the ______, the test or experiment procedures, the observations, the findings or results and so on.
This kind of knowledge also helps us in following the ______ developments in science.