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。

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 ”实际上更接近 L 的音“ la ”，而不是英语中的“ 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” 。

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

明白了，明白了，ra--, ra-- 我不明白。

Ra-- ra-- A flap T to connect the two words.

Ra-- ra-- A flap T 连接两个词。

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。

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

所以你可以从：“da” 开始； 现在说：“ra” 。

That allows ras systems to perform an aquatic version of what, on land, is called precision agriculture.

这使得 ras 系统能够在陆地上执行水生版本的精准农业。

So your general American 'r' is in the front of the mouth, " ra, ra, ra" or really more in the middle, the middle of the tongue.

所以你一般的美国 'r' 在嘴巴的前面， “ra, ra, ra”或者更确切地说是在中间， 舌头的中间。

I also like to start using just the " r" and a vowel first, because I think that's easiest, so saying: " ra" or " ro" , or " re" .

我也喜欢先开始只使用“r” 和一个元音， 因为我认为这是最简单的，所以说：“ra” 或“ro” 或“re” 。

What you see here is performance on that head-turn task for babies tested in Tokyo and the United States, here in Seattle, as they listened to the ra and la - sounds important to English, but not to Japanese.

这里是东京和美国西雅图参加测试的婴儿在转头实验中的表现，此时他们听到了“ra”和“la”，这是英语中很重要的发音，日语中却不重要。

She was dressed very poorly and she had what looked like a sort, some kind of fur hat, a rather mangy fur hat, and on this hat was fixed a ra, a crook-like feather, a very, very long crook-like feather.

她穿得很破， 戴的好像是什么，某种毛皮帽子， 一顶脏兮兮的毛皮帽子， 帽子上固定着一根 ra，一根弯曲的羽毛， 一根很长很长的弯曲的羽毛.