试题题干
Translate the following sentence into Chinese.
"Research on depression shows that one of the biggest causes of depression is ruminating about something that went wrong in the past," says Baylis.
参考答案
试题解析
考点：research on depression 对抑郁症的研究；one of the biggest causes of ····最大的原因之一。
句子结构：引号内为Baylis说的话，主干为Research on depression shows，that引导宾语从句。