词典释义：
state or describe exactly the nature, scope, or meaning of
下定义；确切说明（或解释）
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the contract will seek to define the client's obligations .合同会说明客户的义务。
give the meaning of (a word or phrase), especially in a dictionary
（尤指词典中）为（单词，词组）释义。
make up or establish the character of
树立，表明
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for some, the football club defines their identity .对于一些人来说，足球俱乐部表明了他们的身份。
mark out the boundary or limits of
标出界线（或范围）
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[as adj.
defined ]clearly defined boundaries .明确标出的边界线。
make clear the outline of; delineate
使…的轮廓清晰；勾勒出…的轮廓；描绘
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she defined her eyes by applying eyeshadow to her eyelids .她在眼睑上涂了眼影突出眼睛的轮廓。
"late Middle English （also in the sense ‘bring to an end’）： from Old French
