First, must assure enough sleep, it is the primary condition.

第一，一定要保证充足的睡眠，这是首要条件。

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Water is primary condition of the human survival and lifeline of the national economy.

水是人类生存的基本条件，又是国民经济的生命线。

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This article carries on the elaboration through four major parts tithe primary condition folk song education value.

本文通过四大部分对原生态民歌的教育价值进行阐述。

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In the early 1990s, Klug had been diagnosed with a rare disease known as Primary Sclerosing Cholangitis (PSC), a rare degenerative liver condition that requires a transplant.

VOA: standard.2010.02.26

Leicester City Council said investment was needed because of the condition of primary school buildings and a rise in demand for places.

BBC: Leicester primary schools to get ?15m investment

Abrupt-onset and slow-to-build sex headaches can be primary headache disorders not associated with any underlying condition.

CNN: Sex headaches

Does the fact that there is a primary school in the neighbourhood mean that the socioeconomic condition of children in India today allows them to go to that school?

UNESCO: Reading for a Billion: Same Language Subtitling