My parents turn in publicgrain to the state every year.
我父母每年向国家交公粮。
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When grain prices surged in 2007, most countries had reduced their publicgrain reserves to almost zero, and so lacked the means to stabilize the grain market.
Take for example, the collection of publicgrain. If we make clear to everyone the strategic importance and the overall situation, we shall be able to accomplish the task.