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“吃葡萄不吐葡萄皮，不吃葡萄倒吐葡萄皮”——一句刻在国人DNA的绕口令。说到这个，各种水果蔬菜的“皮”，如苹果皮、香蕉皮、西瓜皮；各种谷物坚果的壳，如稻谷壳；各种面食类外皮，如面包皮，饺子皮；各种动植物坚硬的外壳如龟壳、蛋壳、椰子壳，都该如何用英语表达呢？
1. skin
skin 可以用来表示天然覆盖的表皮，如人的皮肤、动物皮毛或比较薄的水果皮。
词典释义：elastic substance that forms the outer covering of the body of a person or an animal （人或动物的）皮, 皮肤:
a dark, an olive, a fair, etc skin 黝黑的﹑ 橄榄色的﹑ 白皙的皮肤
She had thick black hair and smooth dark skin.
她有着浓密的黑发和光滑的黑皮肤。
tiger skin 虎皮
词典释义：skin of an animal that has been removed from its body, with or without the fur; hide; fur 毛皮; 皮革; 皮张:
pigskin 猪皮
calfskin 小牛皮
sheepskin 羊皮
a rabbit-skin 兔皮
a leopard skin 豹子皮
词典释义：outer covering of a fruit or plant 果皮; 植物的外皮
slip on a banana skin 踩着香蕉皮而滑倒
grape skins 葡萄皮
apple skin 苹果皮
pear skin 梨子皮
grape skin 葡萄皮
potato skin 土豆皮
kiwi skin 猕猴桃皮
peach skin 桃子皮
2. peel
peel 尤指一些水果或蔬菜在吃前要剥掉或削掉的外皮，如：香蕉皮、橘子皮，相对较厚。
词典释义：[U] outer covering or skin of fruit, vegetables, etc （蔬菜﹑ 水果等的）皮:
lemon peel 柠檬皮
mango peel 芒果皮
banana peel 香蕉皮
candied peel, ie peel of oranges, lemons, etc coated in sugar 蜜饯果皮
另外，peel 作动词也有 “剥皮、削皮” 的意思。
词典释义：peel sth (for sb) take the skin off (fruit, etc) 除掉（水果等）的皮。
peel a banana, an apple, a potato, etc 剥香蕉皮﹑ 削苹果皮﹑ 刮土豆皮
Would you peel me an orange? 给我剥个橙子行吗？
Have you peeled the potatoes? 你给土豆削皮了么？
3. rind
rind指谷类、果实或种子的外壳、外皮
词典释义：hard outer skin or covering on some fruits (eg oranges, lemons) and some types of cheese, bacon, etc 某些水果（如橘子﹑ 柠檬）的硬皮; 乾酪﹑ 腌肉等的外皮。
cut off the bacon rind 切掉腌肉的皮
watermelon rind 西瓜皮
grapefruit rind 葡萄柚皮
pomelo rind 柚子皮
pumpkin rind 南瓜皮
Discard the bacon rind and cut each rasher in half. 去掉熏肉皮，把每一片切成两半。
4. husk
husk指谷类、果实或种子的外壳、外皮
词典释义：dry outer covering of certain seeds and fruits, esp grain （某些种子和果实的）外壳, 外皮（尤指谷类的）:
rice in the husk 稻谷 ie brown rice, with the husks not removed
corn husk 玉米皮
rice husk 稻谷壳
barley husk 大麦壳
5. crust
crust指面包皮或 (馅饼、比萨饼等的) 酥皮
词典释义： hard outer surface of a loaf of bread; pastry covering of a pie, tart, etc 面包皮; 糕饼等的酥皮
a white loaf with a crisp brown crust 有焦皮的白面包
Cut the crusts off when you make sandwiches. 做三明治时要把焦皮切掉
a thin-crust pizza 薄皮披萨
We saved a few crusts of bread for the birds. 我们留了几块面包皮给鸟吃。
I don't eat steamed bread crust. 我不吃馒头皮。
6. shell
shell指蛋、坚果、某些种子和某些动物的外壳
词典释义：hard outer covering of eggs, of nut-kernels, of some seeds and fruits, and of animals such as oysters, snails, crabs and tortoises （卵﹑ 坚果﹑ 种子﹑ 果实以及牡蛎﹑ 蜗牛﹑ 蟹﹑ 龟等的）壳
collecting sea-shells on the beach 在海滩捡贝壳
empty coconut shells 空的椰子壳
broken pieces of shell 贝壳的碎片.
They cracked the nuts and removed their shells.他们把坚果敲碎，剥去壳。
a snail shell 蜗牛壳
turtle shell 龟壳
egg shell 蛋壳
chestnut shell 板栗壳
walnut shells 核桃壳
也可以指蛋糕外壳或者点心皮。
A thin layer of pastry. 糕饼皮：糕饼的薄层；an edible crust for holding a filling
a pastry shell 糕点壳
a taco salad in a tortilla shell 玉米饼壳里的炸玉米饼沙拉
Pour the mixture into a prepared pie shell and bake at 375° for 45 minutes. 把混合物倒进预先准备好的馅饼皮中，然后在375度下烘烤45分钟。
taco shells 墨西哥玉米卷（的）皮
7. wrapper
wrapper指货物售出时所用的纸质或塑料的包装纸。饺子皮也用 wrapper。
词典释义：a piece of paper, plastic, etc. that is wrapped around sth, especially food, when you buy it in order to protect it and keep it clean （食品等的）包装材料，包装纸，包装塑料
(British English) sweet wrappers 糖果包装纸
(North Amercian English) candy wrappers 糖果包装纸
饺子皮 dumpling wrapper 饺子皮需要人去wrap（包裹）,所以叫wrapper
