And we see this lower frequency formant here.

我们可以看到这个低频共振峰。

At the lower frequency, you will hear the word Laurel.

而捕捉到较低频率时，你听到的就是“Laurel”的发音。

The less clothes you wear, the lower the frequency of kissing.

你穿的衣服越少，接吻的频率就越低。

Now they knew lower frequency words but they hadn't mastered those most important words.

他们知道低频词，但是他们还没有掌握那些最重要的单词。

A change from alpha wave drowsiness to lower frequency theta brain waves signify early sleep.

从α波睡意到较低频率的脑电波的变化表示早睡。

So, why are some people hearing the higher frequency and some are hearing the lower frequency?

为什么有的人听到较高的频率，而有的人听到较低的频率呢？

And these are speakers that play even lower frequencies than most systems are able to do.

而这些扬声器播放的频率比系统能播放的更低。

Then we hit that long period where we're slowly acquiring these, you know, lower frequency words, which we need.

然后我们在很长一段时间里，我们慢慢地学会了这些低频率的单词，我们需要这些词。

But the European siren is at a lower frequency, so it would not seem as painful to a person's ears.

但是欧洲的警报频率较低，所以对一个人的耳朵来说似乎没有那么痛苦。

Professor Webb spoke there about research that showed students knew lower frequency words but weren't learning enough high frequency words.

韦伯教授刚才说了关于表明学生知道低频词却没有学习足够的高频词的研究。

This is a much lower frequency than the male.

HS：这个频率比男性低得多。

They send out high frequency waves first followed by lower and lower frequency waves.

它们首先发出高频波，然后发出越来越低的频率波。

And because the high frequency waves travel slower, the lower frequency waves gradually catch up.

由于高频波传播速度较慢，低频波逐渐赶上。

And then as lower and lower frequencies are affected, the difficulties become greater and greater.

然后随着影响的频率越来越低，困难也越来越大。

Large baleen whales primarily use the lower frequencies and are often limited in their repertoire.

大型须鲸大多使用低频声音，并且声音类型有限。

In part, they do this by using lower frequencies, which are more readily transmitted through water.

在某种程度上，他们通过使用更容易通过水传播的较低频率来做到这一点。

Light with a lower frequency and longer wavelength is on the redder side of the spectrum.

具有较低频率和较长波长的光 位于光谱的较红一侧。

So that learning those 800 words first will provide the foundation for which you may be able to learn the lower frequency words.

所以先学习那800个单词会为你以后学习低频词汇打下基础。

Some might be able to hear lower frequencies like drums or bass but not higher frequencies like vocals or guitars.

有些人可能能够听到较低的频率，如鼓或贝斯，但听不到较高的频率，如人声或吉他。

They were also given 20 grams of whey protein after each session, with the lower frequency group consuming another 20 grams of whey protein the day after to compensate for the fewer sessions.

他们还在每次治疗后服用 20 克乳清蛋白，锻炼频率较低的一组在第二天再摄入 20 克乳清蛋白来弥补较少的治疗。