模式中通常仅出现一次的组件没有数量调节按钮。

Components that typically appear only once in a pattern do not have quantity spinners.

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而这种稀有的是在很长一段时间里才会出现一次的。

And that kind of rarity comes only once in a long while.

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然后步进到第一个且只出现一次的元素named - item。

It then steps into the first and only occurrence of the element named - items.

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Let's look at the first appearance of Mammon in Paradise Lost.

请看在《失乐园》中贪欲之神第一次出现的地方。

耶鲁公开课 - 弥尔顿课程节选

That's the only time since World War II that we've had a higher level of residential investment.

如此巨额的住宅投资,自二战以来只出现过一次

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So what syncopation is is simply the insertion of an impulse, a "Hit" If you will, at a metrical place that we do not expect it to be.

所以切分音就是插入的一个冲动,也可以说是一次"撞击",出现在一个我们意料之外的位置

耶鲁公开课 - 聆听音乐课程节选