food
牛津词典
1、[U] 食物
things that people or animals eat
2、[C, U] （某种）食物
a particular type of food
柯林斯词典
1、N-MASS 食物;食品
Food is what people and animals eat.
朗文词典
1、[C, U] 食物
things that people and animals eat, such as vegetables or meat
crop
牛津词典
1、[C] 庄稼；作物
a plant that is grown in large quantities, especially as food
2、[C] （谷物、水果等一季的）收成，产量
the amount of grain, fruit, etc. that is grown in one season
柯林斯词典
1、N-COUNT 庄稼;作物
Crops are plants such as wheat and potatoes that are grown in large quantities for food
2、N-COUNT (谷物或水果的)收成，产量
The plants or fruits that are collected at harvest time are referred to as a crop
朗文词典
1、[C] 庄稼;作物
a plant such as wheat, rice, or fruit that is grown by farmers and used as food
2、[C] 一季的收成，收获 = harvest
the amount of wheat, rice, fruit etc that is produced in a season
grain
牛津词典
1、[U, C] 谷物；谷粒
the small hard seeds of food plants such as wheat , rice, etc.; a single seed of such a plant
2、[C] 颗粒；细粒
a small hard piece of particular substances
柯林斯词典
1、N-COUNT 谷粒
A grain of wheat, rice, or other cereal crop is a seed from it.
2、N-MASS 谷物（尤指小麦或玉米）
Grain is a cereal crop, especially wheat or corn, that has been harvested and is used for food or in trade.
3、N-COUNT 细粒;微粒;小颗粒
A grain of something such as sand or salt is a tiny hard piece of it.
朗文词典
1、[U] 谷物，粮食
the seeds of crops such as corn, wheat, or rice that are gathered for use as food, or these crops themselves
2、[C] 谷粒
a single seed of corn, wheat etc
3、[C]（沙或盐的）颗粒
a single very small piece of a substance such as sand or salt
corn
牛津词典
1、(BrE) [U]（小麦等）谷物；谷粒
any plant that is grown for its grain, such as wheat ; the grain of these plants
2、(NAmE) [U] 玉米；玉蜀黍
= maize (BrE)
3、[C] （尤指脚趾上的）钉胼，鸡眼
a small area of hard skin on the foot, especially the toe, that is sometimes painful
柯林斯词典
1、【英】N-UNCOUNT 麦类作物;谷物;谷粒 =【美 grain】
Corn is used to refer to crops such as wheat and barley. It can also be used to refer to the seeds from these plants.
2、【美】N-UNCOUNT 玉米 = 【英 maize】
Corn is the same as maize.
3、N-COUNT (尤指脚趾周边的)鸡眼，钉胼
Corns are small, painful areas of hard skin which can form on your foot, especially near your toes.
朗文词典
1、[U] BrE 谷物；谷粒
plants such as wheat, barley, and oats or their seeds
2、[U] AmE 玉米 = maize BrE
a tall plant with large yellow seeds that grow together on a cob(=long hard part), which is cooked and eaten as a vegetable or fed to animals
3、[C] 鸡眼，钉胼
a painful area of thick hard skin on your foot
