3. No one is sure how the ancient Egyptians built the pyramids near Cairo. 没人知道古埃及人是如何在开罗附近建造金字塔的。
4. A 20-year action plan for cutting the rate of world population growth is expected to win wide approval today in Cairo. 一项旨在降低世界人口增长率的20年行动计划今天在开罗有望获得广泛认可。
5. While careful planning for the afterlife may lie buried underground in Cairo, it is noise and confusion on the streets. 虽然对来世的周密计划可能被埋在开罗的地下,但街道上却是喧嚣和混乱。