the action of using something or the fact of being used
使用
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a survey of water usage 水利用调查
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the usage of equipment .设备使用。
the way in which a word or phrase is normally and correctly used
(词,短语)惯用法;正确用法。
habitual or customary practice, especially as creating a right, obligation, or standard
(尤指形成权利,义务,标准等的)常规做法;惯例。
"Middle English (in the sense ‘customary practice’): from Old French, from