muddy the waters困难

(46) Tracing the history of the term, we can see how the definition of scientific literacy has shifted over time, muddying the waters when it comes to determining the goals of science education.

(46) 追溯这一术语的历史，我们可以看到科学素养的定义是如何随着时间推移而变化的，这使得确定科学教育的目标变得更加混乱。