While one-time-only transformations may be easier to develop, it has been our experience that these types of transformations see very little usage relative to the effort required to create them.

虽然开发一次性的转换会更简单，但是就经验来看，相对于开发这种类型的转换所需的工作量来说，它们的用途是非常少的。

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While one-time inventory write-downs dealt a 22-cents-per-share blow, the company still missed estimates in its ongoing business by a sizable 12%.

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It allows up to 10 people to connect with one another at any one time while Facebook can only connect people on a one on one video chat.

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And while the one-time superstar might be smarting from such an ignominious end to the season, he might take heart from knowing that another New York A Rod has got it a whole lot worse than he does.

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