米饭rice是不可数名词。说“一粒米”要用a grain of rice;“多粒米”要用grains of rice;“两碗米饭”要用two bowls of boiledrice。
Could you give the rice a stir?
你把米饭搅一搅好吗？
The people cultivate mainly rice and beans.
这里的人们主要种植稻子和豆类。
As a rough guide, allow half a cup of rice per person.
大致定个标准，就是每人半杯米。
