名詞 grain:

1. a small hard particle
   同義詞：grain
2. foodstuff prepared from the starchy grains of cereal grasses
   同義詞：grain, food grain, cereal
3. a weight unit used for pearls or diamonds: 50 mg or 1/4 carat
   同義詞：grain, metric grain
4. 1/60 dram; equals an avoirdupois grain or 64.799 milligrams
   同義詞：grain
5. 1/7000 pound; equals a troy grain or 64.799 milligrams
   同義詞：grain
6. dry seedlike fruit produced by the cereal grasses: e.g. wheat, barley, Indian corn
   同義詞：grain, caryopsis
7. the direction or texture of fibers found in wood or leather or stone or in a woven fabric
   同義詞：grain

動詞 grain:

1. thoroughly work in
   同義詞：ingrain, grain
2. paint (a surface) to make it look like stone or wood
   同義詞：grain
3. form into grains
   同義詞：granulate, grain
4. become granular
   同義詞：granulate, grain

1. The analysis showed a few grains of arsenic in the solution.
   分析顯示溶液中有幾格令的砷。
2. We can see numberless grains of sand in a windy day.
   在風天，我們能看到無數(shù)沙粒。
3. They are separating the grains from wheat with a threshing machine.
   他們正在用打谷機給小麥脫粒。
4. How can we remove the husk of the grains?
   我們怎樣去掉谷物的外皮？