New Words：

pyramid ['pirəmid] n. 金字塔
mystery ['mistəri] n. 神秘；奥秘；神秘的人或事物
Mystery novel 神秘小说；推理小说；悬疑小说

Sample Sentences：

Egypt is famous for its grand pyramids.
Pyramid is one of the miracles in the world.

His death has remained a mystery.
Have you heard about the mystery of the ship that disappeared?

miracle ['mirəkl] n. 奇迹

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