As a historian who's always searching for the text or the image that makes us re-evaluate the past, I've become preoccupied with looking for photographs that show our Victorian ancestors smiling (what better way to shatter the image of 19th-century prudery?).
作为一名总是寻找能让我们重新审视过去的文本或图像的历史学家，我开始着迷于寻找那些展示我们维多利亚时代祖先微笑的照片（还有什么比这更能打破19世纪保守刻板的印象呢？）。
They seemed mysterious to human ancestors.
它们似乎对人类祖先而言是神秘的。
例句取自历年考研英语真题，翻译为机器生成，仅供学习参考。