“L是左，R是右。L是left的缩写，R是right的缩写。Left是左边的意思，right是右边的意思。通常为了方便简单，就只用它们的首字母缩写来代表。很多耳塞上都会有R和L的标志，它不仅有着左右的区别，还有摇滚（rock）和舒缓（Light）的意思。为了满足不同人群对音质的追求，有些人喜欢听摇滚需求。
R stands for right, while L stands for left. L is the abbreviation for “left”, and R is the abbreviation for “right”. Left signifies the left side, while right signifies the right side. To simplify and facilitate communication, their initials are commonly used to represent them. Many earphones have markings for R and L, indicating not only the left and right differentiation but also the preference for rock or light music. Some individuals have a preference for listening to rock music to cater to their desired sound quality.
