And retention is key for the city.

而留住居民是这座城市的关键。

Persistent hot weather can also cause rashes, fluid retention, dizziness and even fainting.

持续高温也可能导致皮疹、水肿、头昏甚至昏厥。

Mr. Wolowitz borrowed it, damaged plastic retention hub number three...

沃罗威茨曾经借走过 结果把第三张碟的塑料壳弄坏了。

Information learned right before bed has greater rates of retention.

睡前学到的信息保存率更高。

While some of us prefer complete silence, an uplifting piece of non-distracting music (without lyrics) may improve mood and increase the chances of information retention.

虽然我们有些同学更喜欢安静的环境，一段振奋人心的纯音乐（没有歌词）可以改善情绪，加深知识的记忆。

Cats and dogs not only relieve stress, but they can help with work-life balance, employee retention and overall satisfaction.

猫和狗不仅能缓解压力，还能帮助平衡工作与生活，保持员工的满意度和整体满意度。

That will maximize your retention and keep creativity up.

这样可以最大程度地保持你的记忆力和创造力。

The retention of old technology has slowed the company's growth.

延用旧技术阻碍了该公司的发展。

Power is required for the accumulation of money and then the retention of that money.

权力是积累金钱和保存金钱的必要条件。

You were very dehydrated and suffering from urinary retention and renal failure.

你脱水非常厉害，得了闭尿症和肾衰竭。

And if you were to characterize what's motivating those iterative steps, it's an analytical process, where we're trying to understand how do we create better retention?

如果要说这些渐进的步有什么原因，那就是分析过程；通过分析，我们希望了解如何才能更好地留住用户。

During the second phase, also called Weil disease, there may be signs of end-organ damage like jaundice, a cough, dyspnea and hemoptysis, reduced urine output and fluid retention, depending on the affected organs.

在第二阶段，或者韦尔氏（Weil）病阶段，病人可能出现器官损伤的症状，比如黄疸、咳嗽、呼吸困难、咳血、尿量减少、液体潴留等，所出现的症状取决于受累的器官。

Researchers assessed academic performance using standardized test scores, as well as attendance rates, teacher-student ratios, and retention rates - which is the number of students required to repeat a certain grade.

研究人员使用标准化考试分数、出勤率、师生比和留级率来评估学习成绩—在某一个年级里，学生人数需要重复多次研究。

In January, 7 percent of restaurant operators named recruitment and retention as their top challenge.

今年1月，7%的餐厅经营者将招聘并留住员工列为他们面临的最大挑战。

50. What does the author suggest managers do to neutralize the retention risk?

50. 作者建议管理者做些什么来抵消员工留任风险？

Interleaving, or mixing the concepts you focus on in a single session, can lead to better retention than practicing a single skill or topic at a time.

与练习单一技能或主题相比，在学习中穿插或混合所关注的概念，可以提高记忆力。

So how do companies get retention rates up?

那么，企业如何提高客户留存率呢？

Well, there are a few ways to influence the extent and effectiveness of memory retention.

那是因为有很多东西会影响记忆形成的程度和有效性。

Studies have shown they do have excellent retention and recall.

研究表明，大象确实具有出色的记忆力和回想能力。

Retention is the latest area to require attention.

留存率是最近需要关注的领域。