* Pronunciation of the "R" sound in English: Many Mandarin speakers have difficulty producing the "R" sound as it's pronounced in English. This is because Mandarin has a different set of sounds, and their "R" sound is closer to a "sh" or "zh" sound. As a result, they might say "l" instead of "r," or pronounce words like "red" as "led."
* Pronunciation of the "R" sound in other languages: However, Chinese people can absolutely learn to pronounce the "R" sound as it's pronounced in other languages, including English. It just might take practice and effort.
* Pronunciation of "R" sounds in Chinese: There are actually "R" sounds in Chinese, but they are different from the "R" in English. For example, there is a retroflex "R" sound, which is produced by curling the tongue back towards the roof of the mouth.
In summary:
* Chinese people can learn to pronounce the "R" sound in English, but it may be challenging for some due to the differences in their native language.
* Chinese people can pronounce "R" sounds in other languages, including English, with practice.
* Chinese languages have their own "R" sounds, which differ from the English "R."
It's important to avoid making generalizations about entire groups of people. Individuals within any language group will have varying degrees of difficulty with particular sounds.