If this happens correctly, each of the new cells has exactly the same composition as the parent cell.

如果一切正常,每一个新细胞都会,和亲代细胞在组成上完全一致

耶鲁公开课 - 生物医学工程探索课程节选

And you know, they might not be exactly like what you expected them to be online.

而且，现实生活中的他们（她们）可能和你在网上见到的那个人不完全一致。

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This parallels exactly what you are reading.

即课堂内容和阅读材料的内容完全一致

耶鲁公开课 - 欧洲文明课程节选

It means exactly what it sounds like.

它们表达的意思和字面上的意思完全一致。

I didn't 课堂 - SpeakingMax英语口语达人