Caffeine consumption correlates with education levels. Amphetamine use tracks levels of crime.

咖啡因摄入与教育程度相关。安非他命的使用能追踪犯罪程度。

For example, we can use level intonation, where you stay at the same pitch.

例如，我们可以用平调，也就是一直保持在一个调。

Ideally, you're using an SPF level that's between a 30 and a 50.

理想情况下，你使用的防晒指数在30到50之间。

It's almost the same, except we're using a higher level of vocabulary, where we're using here twice.

基本上是一样的，除了我们使用了更高级的词汇，我们在这里使用“twice”这个词。

But their satellite tracking shows the elephants use incredible levels of intelligence to avoid poaching hotspots in neighboring countries.

但是它们的卫星标记却显示它们会聪明地避开邻国的偷猎多发地带。

In other words, it shows them where to begin and where to go next using different levels of emphasis.

换句话说，不同层级的强调性能够告诉他们要从哪里开始看，再看哪个地方。

So traditionally, physicians have been using very high HDL levels as a marker of a really healthy cholesterol profile.

因此，传统上，医生们一直将高密度脂蛋白超高水平作为胆固醇状况健康的标志。

But when should you use these different levels of language?

但是，什么时候您要使用语言的 这些不同等级呢？

The difference in these two levels is the situation in which you use a particular level.

这两个级别的区别在于您使用特定级别的情况。

They found that " students who used their phones the most reported higher levels of feeling… lonely, depressed and anxious" .

两位教授询问了135名大学生对智能手机的使用情况和他们的感受。他们发现，" 使用手机的学生最容易感到孤独、沮丧和焦虑。"

During the long-term encoding process, the hippocampus will use different levels of neurotransmitters based on, among other things, how important the information is.

在长期的编码过程中，海马体会根据信息的重要性使用不同水平的神经递质。

At very high levels, the heat caused by ultrasound waves can damage sensitive tissues, but technicians typically use the lowest levels possible.

在非常高的水平下，超声波引起的热量会损害敏感组织，但技术人员通常使用尽可能低的水平。

Organic farmers also plant crops to use different levels of soil, for example, planting peanuts that use the ground's surface followed by vegetables that put down deep roots.

有机耕作的农民还种植多种农作物来利用不同层次的土壤。比如，他们先种植生长于浅层土壤的花生，然后再种植生根于深层土壤的蔬菜。

Their satellite tracking shows that the elephants use incredible levels of intelligence to avoid poaching hot spots in neighboring countries, retreating to the relative safety within Botswana.

他们的卫星跟踪表明， 大象使用令人难以置信的智力水平来避开邻国的偷猎热点， 撤退到博茨瓦纳境内相对安全的地方。

If it made you want to cover up or just have a good guide for which levels of SPF you should be using, check our SciShow beach towel at DFTBA.com.

如果看了视频使你想遮挡起来，或者有了使用何种防晒级别的防晒霜的好指导，查看SciShow官网DFTBA.com。

In a study published in 2020, Dr. Knappe and his co-authors found that, on average, pitcher and refrigerator filters that use activated carbon reduced PFAS levels by about 50 percent.

在 2020 年发表的一项研究中，Knappe 博士和他的合著者发现，使用活性炭的水壶和冰箱过滤器平均可将 PFAS 含量降低约 50%。

Pesticides are still used around the globe today levels that have been deemed safe by local governments, but to use enough pesticides to kill off all of the mosquitoes just wouldn’t

今天， 全球范围内仍然使用农药， 地方政府认为这是安全的，但使用足够的杀虫剂来杀死所有的蚊子是行不通的。

Pesticides are still used around the globe today levels that have been deemed safe by local governments, but to use enough pesticides to kill off all of the mosquitoes just wouldn't be a safe bet.

如今，全球各地仍在使用杀虫剂，其水平已被地方政府认定为安全水平，但是使用足够多的杀虫剂来杀死所有的蚊子是不安全的。

A higher stability will mean the voice will sound more boring but is less likely to speak in a strange way, but for longer pieces of text, they recommend using a lower stability level.

更高的稳定性意味着声音听起来更无聊，但不太可能以奇怪的方式说话，但对于较长的文本，他们建议使用较低的稳定性级别。