第175课:Do you expect to live to see the 22nd century?

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主题：Do you expect to live to see the 22nd century?

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Maybe. I'll be 101. Because the life expectancy is increasing over time and also many of my great grandparents and beyond have died around between 95 and 105 years old. So yeah I might live to see the 22nd century.

Life expectancy: 平均寿命
Over time: 随着时间的过去