grain
/greɪn; ɡren/ n
1 [U] (esp commerce 尤用於商业) small hard seeds of food plants such as wheat, rice, etc 谷物
[attrib 作定语]
America's grain exports 美国的谷物出口.
2 [C] single seed of such a plant 谷粒
a few grains of rice in a bowl 碗中的几颗米粒. =>illus at cereal 见cereal插图.
3 [C] tiny hard bit 小的硬粒
a grain of sand, gold, etc 沙粒、 金粒.
4 [C] smallest unit of weight in various measuring systems, -1-7000 lb or 0.065 gm 格令（重量的最小单位, 等於-1-7000磅或0.065克）
The analysis showed a few grains of arsenic in the solution. 分析显示溶液中有几格令的砷. =>App 5 见附录5.
5 [C] (fig 比喻) very small amount 少量; 微量
There isn't a grain of (ie any) truth in it. 那事无丝毫真实性.
6 [U]
(a) (surface) texture produced by particles （微粒形成的）质地（表面）
a stone of fine/medium/coarse grain, ie containing small/medium/large particles 质地细的[不粗不细的/粗的]石头.
(b) pattern made by the lines of fibres in wood, or of layers in rock, coal, etc （木、 石、 煤等的）纹理
cut a piece of wood along/across the grain 把木头顺著木纹[对著横纹]截断. =>illus 见插图.
(c) rough appearance of a photographic print, as if made up of small particles of light and dark （照片的）颗粒.
7 (idm 习语) (be/go) against the `grain (be) contrary to one's nature or inclination 与自己的性格、 意愿格格不入
It really goes against the grain to have to go into the office at weekends, ie I do not like it. 我真不愿意周末还要上班.