Do you usually challenge the idea an author represents 转成如下句型，是否成立？感谢！ 经过了一个学期的英语学习的翻译是：什么意思

\u5916\u8bed\u5b66\u4e60\u7ffb\u8bd1\uff0c\u82f1\u8bed

foreign language learning ;

\u4e00\u9879\u9488\u5bf9\u6210\u5e74\u4eba\u5916\u8bed\u5b66\u4e60\u7684\u5c0f\u578b\u7814\u7a76\u5bf9\u4e24\u79cd\u5b66\u4e60\u65b9\u6cd5\u8fdb\u884c\u4e86\u6bd4\u8f83\u3002

A small study of foreign language learning in adults compared two methods.

\u7ecf\u8fc7\u4e86\u4e00\u4e2a\u5b66\u671f\u7684\u82f1\u8bed\u5b66\u4e60\u3002
\u82f1\u6587\u7ffb\u8bd1\uff1aAfter a semester of English study.
\u91cd\u70b9\u8bcd\u6c47\u91ca\u4e49\uff1a
\u7ecf\u8fc7\uff1aafter; by; pass; go through; as a result of
\u5b66\u671f\uff1aterm; semester; school term; trimester
\u82f1\u8bed\u5b66\u4e60\uff1aEnglish study

不行的。可以转为定语从句。Do you usually challenge the idea that /which an author represents？注意，如果用that可以省略。
challenge 后面应该直接接其宾语

Do you usually challenge the idea which is represented by an author你说的那句应该不算是变换形式吧？我觉得应该是。Idea后面改成被动句。你经常挑战想法，什么想法呢，被作者提出的想法