释义
adj.
done, made, or happening only once and not repeated
一次性的
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one-off tax deductible donations to charity .一次性的可减税慈善捐赠。
n.
something done, made, or happening only once, not as part of a regular sequence
一次性事物
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the meeting is a one-off .会议是一次性的。
a person who is unusual or unique, especially in an admirable way
独一无二的人
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he's a one-off, no one else has his skills .他是独一无二的，没人有他那样的技术。