Occasionally, in some difficult musical compositions, there are beautiful, but easy parts—parts so simple a beginner could play them.

有时候，一些很难的音乐作品中会有一些优美但简单的部分——初学者都能演奏的简单部分。

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You may occasionally be able to fine-tune some (but certainly not all) SQL to improve performance and reduce CPU usage by rearranging the predicates.

通过重新安排这些谓词，您偶尔可能会调优一些（但肯定不是全部）SQL 来改进性能并减少 CPU 占用。

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Modern historians and archeologists often turn to etymologists for assistance and occasionally get some advice from them, but in principle, it is word historians who need help.

现代历史学家和考古学家常常向词源学家求助，偶尔也从他们身上得到一些建议，但大多数情况下是研究单词的历史学家们需要帮助。

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The only way that we would get that occasionally would be through some sort of lot-financing activities, but that's not something that I've generally liked.

唯一偶然涉水个人住宅领域的方式,是通过一些大型的融资行为,但那一般不是我喜欢的

耶鲁公开课 - 金融市场课程节选

But you do get some occasionally, right, in good times?

WHITEHOUSE: Fourchon Beach, Louisiana

Not long ago the category of Best Picture was expanded to a whopping ten movies (every selected film also qualifies for the NHL playoffs.) There are fashion misfires and tributes to legends and occasionally some emotional payoffs, but the Oscars can't escape feeling predictable and dutiful, especially since a calendar stuffed with awards shows has already established a reliable pattern of winners.

WSJ: Oscar Night vs. Sports

So far, only a fraction of patients have responded to the treatments, but the benefits have occasionally been dramatic, with some melanoma patients on Yervoy, for instance, surviving several years after one course of treatment.

WSJ: New Cancer Drugs Harness Power of Immune System