0 something that happens or is made or done only once -- coisa rara
1 happening only once -- único
They gave him a one-off payment to compensate for the extra hours that he had to work.
中文繁体
一次性的事物, 一次性的…
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一次性的事物, 一次性的…
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caso único, único, intento único…
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bir defalık, bir defaya mahsus…
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exceptionnel, unique…
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specialista, jedinečnost, individuální…
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engangs-…
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satu kesempatan…
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