Since 2008 the United States has not sold a single grain of rice to Cuba.

VOA: standard.2010.07.29

So the inventor of the chess game said, "Ok. What I like is on the first block, first square, I would like one grain of rice.

于是象棋发明者说，“好吧，我希望，在第一个方格上，我想要一粒大米。

哈佛公开课 - 幸福课课程节选

Brown rice is the naturally occurring form of the grain.

VOA: standard.2010.06.25

The Philippines this week said it is cutting rice imports because of high prices, even though the country lost more than a million tons of grain to typhoons this year.

VOA: standard.2009.12.17

Rice is one of the world's most abundant food crops. The success of this grain can be attributed to the availability of both manpower for planting and harvesting, as well as plentiful rainfall in the regions where it's grown.

VOA: standard.2010.06.25