a device or piece of equipment designed to perform a specific task, especially a domestic one
(用于特定目的的)器具(尤指家用器具)
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electrical and gas appliances. 电器和燃气器具。
a fire engine
消防车。
[mass noun]
〈英〉 应用
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the appliance of science could increase crop yields. 科学的应用会增加农作物的产量。