He is busy preparing for the 2019 National Primary Championships.

他正忙于准备2019年全国初级锦标赛。

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She got 50% in a national primary in August, and is now at 52% in the polls.

八月份的时候她在全国初选当中获得了50%的支持率，现在据民意调查显示这个数字已经达到了52%。

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National primary energy production reached 1.34 billion tons of standard coal.

一级能源生产达到13.4亿吨标准煤。

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PRI's first national primary election, in which 8m Mexicans voted last Sunday, marks an innovation, and another welcome step in Mexico's tortuous evolution to democracy.

ECONOMIST: Slow change for Mexico

And whoever wins, South Carolina could get a boost going into the February 5th national primary - that's when big states like New York, New Jersey and California vote.

NPR: Democrats Flock to Rep. Jim Clyburn's Fish Fry

Now that we have a national primary process to select our presidential candidates, the conventions have become vestigial remains of a prior time when candidates were actually selected at them.

FORBES: The Romney Ryan Paired Trade