Optimizing a large index can be very time-consuming and should be done, if at all, when index updates are infrequent.
优化大型索引可能会非常耗时，而且应该在索引更新不是很频繁的情况下才进行。
If it's used as a relatively infrequent part of the program's operation, the slow performance won't be a concern.
如果它作为程序运行中相对很少涉及的部分，缓慢的性能将不会是一个问题。
If the calls to this web service are infrequent (less than one a minute), it might be determined that there is no need for caching.
如果对这个Web服务的调用不多(每分钟少于一个)，那么可以确定没有必要进行高速缓存。
If your parents are still alive and still married... you are very infrequent, even in Canada.
如果你的父母还在世，而且还在一起你很罕见，就算是在加拿大。
For example, the predictive value of the income statement is enhanced if unusual, abnormal and infrequent items of income or expense are separately disclosed.
例如，如果分别揭示非常、异常和非经常性的收益和费用项目，就可以提高收益表的预测价值。
They subconsciously calculate that the constant efforts we demand of them are greater than the infrequent (albeit larger) losses to them if they don't follow our instructions.
他们潜意识里计算不断的努力我们要求他们都大于对他们很少(尽管较大)损失如果他们不听从我们的指导。
This can be occur with infrequent use of the batteries, or if the batteries have been left discharged so low that they will not accept a charge.
这是源于电瓶的经常使用，或者电瓶放电较慢以致不能充电。
This can be occur with infrequent use of the batteries, or if the batteries have been left discharged so low that they will not accept a charge.
这是源于电瓶的经常使用，或者电瓶放电较慢以致不能充电。
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