词典释义：
a thick outer garment worn outdoors, having sleeves and typically extending below the hips
外套，外衣
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a winter coat 冬天穿的外套
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[as modifier]
his coat pocket .他的外衣口袋。
a similar item worn indoors as a protective garment
防护外衣
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a laboratory coat .实验室服。
a man's jacket or tunic, especially as worn when hunting or by soldiers
男式短上衣（尤指猎装、军装）。
a woman's tailored jacket, typically worn with a skirt
（尤指与裙子搭配的）女式上装。
an animal's covering of fur or hair
（动物的）皮毛。
a structure, especially a membrane, enclosing or lining an organ
（器官的）外层；内层（尤指膜）。
a skin, rind, or husk
外皮；果皮；果壳。
a layer of a plant bulb
鳞茎的层。
[with modifier]an outer layer or covering of a specified kind
外层，表层
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the protein coat of the virus .病毒的蛋白质层。
a covering of paint or similar material laid on a surface at one time
（油漆等的）涂层
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apply a final top coat of varnish .涂最后一层清漆。
provide with a layer or covering of something; apply a coat to
为… 提供外层；给…涂层
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her right leg was coated in plaster 她的右腿打了一层石膏
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coat each part with a thin oil 给各个部件涂上一层薄薄的油
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[as adj., in combination
-coated ]plastic-coated wire .裹塑料的电线。
(of a substance)form a covering to
（物质）形成…的覆盖层
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a film of dust coated the floor .一层灰尘遮盖了地板。
"Middle English： from Old French
