The argument is weakened by the lack of recent data from reliable sources.

由于缺乏来自可靠来源的最新数据，论证被削弱了。

同一单元的其他句子

• The author's main argument is that technology has transformed modern reading habits.作者的主要论点是科技改变了现代阅读习惯。
• How does the passage distinguish between skimming and scanning techniques?文章如何区分略读和扫读技巧？
• Critical reading involves questioning the author's assumptions and evidence.批判性阅读包括质疑作者的假设和证据。
• Do not overlook the significance of the concluding paragraph in a research paper.不要忽视研究论文中结论段的重要性。
• The text's tone is predominantly analytical, yet it occasionally adopts a persuasive stance.文本的基调主要是分析性的，但偶尔采用说服性立场。