We experienced a special period in 2020.

2020年，我们经历了一段特殊时期。

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We can neither get together often nor go to crowded places during the special period.

我们既不能经常聚会，也不能在特殊时期去人多的地方。

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For those who lived through it, the special period was anything but funny.

对于那些经历过那段日子的人来说，特别时期并不好笑。

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Prior to the "Special Period" Cuba had been a heavy user of oil-based chemical fertilizers, and much of the land was heavily degraded, requiring years of careful manuring to restore fertility.

CNN: Can the West cultivate ideas from Cuba's 'Special Period'?

After the island's so-called "special period, " which began in the early 1990s after the dissolution of the Soviet Union, Cuba -- which had long enjoyed Soviet subsidies -- was confronted with a prolonged period of economic hardship.

CNN: STORY HIGHLIGHTS

Special lessons over a three week period will focus on how text, e-mail and social networking sites target vulnerable youngsters.

BBC: Pupils get cyber bullying lessons