AI stands for artificial intelligence and RA stands for remote assistance.

AI代表人工智能，RA代表远程协助。

But “la” and “ra” are phonemes that do not exist in the Japanese language.

但是“la”和“ra”是日语中不存在的音素。

In undergraduate school, I was a resident assistant, which is known as an RA.

在本科阶段，我是一名研究助理，也就是所谓的 RA。

A resident assistant or RA, this is a position at a college or university in a dorm.

研究助理或 RA，这是一个在学院或大学的宿舍里的职位。

When the recording switched to “la la ra” a toy to the side would light up and play a musical tune.

当录音切换到“la la ra”时，旁边的一个玩具就会亮起来，并播放音乐。

But the Japanese R-sound “ra” is actually closer to our L-sound “la” than it is to the English " ra" .

但是日语中的 R 音“ ra ”实接近 L 的音“ la ”，而不是英语中的“ ra ”。

Again, I, kind of, wrote some brief notes here, you know, foramen ovale, RA to LA 'cause fetal lungs don't work.

同样地，我在这里写了一些简短的笔记，你知道，卵圆孔，从 RA 到 LA，因为胎儿的肺不起作用。

Get it, get it, ra--, ra-- I don't get it.

明白了，明白了，ra--, ra-- 我不明白。

In undergraduate school, i was a resident  assistant, which is known as an RA.

在本科学校，我是一名居民助理，也就是众所周知的 RA。

We were friends, I was his RA.

我们是朋友， 我是他的 RA。

So the tongue root, the back of the tongue, comes up for 'ra, ra, ra.'

所以舌根，舌后部，出现“ra， ra，ra” 。

Ra, ra, ra, what a tragedy, here comes the motivator!

啦啦啦， 悲剧了，动力来了！

I was an RA when I went to school here.

我以前在这里读书的时候也是宿管。

You're the most legendary RA we've ever had.

你是我们这里神一般的宿管。

RA Pvay she was building a proille.

哇, 她正在建造一个proille。

A resident assistant or RA, this is a  position at a college or university in a dorm.

住宿助理或 RA，这是学院或大学宿舍的职位。

So you can start with: " da" ; now say: " ra" .

所以你可以从：“da” 开始； 现在说：“ra” 。

Pilots and controllers sometimes judge these RAs as operationally not required and refer to them as nuisance RAs.

飞行员和管制员有时会认为这些 RA 在操作是不需要的，并将其称为滋扰 RA。

However, in real time, the pilot cannot and should not assess whether the RA is in fact operationally required.

然而，飞行员不能也不应该实时评估 RA 是否确实是操作需要的。

TA is common during flight. We sometimes receive TA alerts. But I never encounter RA during flight.

TA 在飞行过程中很常见。我们有时会收到 TA 警报。但我在飞行过程中从未遇到过 RA。