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They were there to take part in a ritual act of concord. 他们在此参加这个友好的仪式。(concord和谐)
Perceive 察觉;注意到
She has perceived the danger. 她已察觉到危险了。
We can perceive his sorrow by the looks on his face. 我们从他的表情中察觉出悲伤。
Summarize 概括
He summarized the book in ten pages. 他用十页概括了这本书。
To summarize, simplicity is the best art. 总之，简洁是最好的艺术。
I will summarize what I have done. 我将概述我所做的事情。
