This is the 7371st most frequent Chinese word.
艾琳
"艾琳" (Ài Lín) is a transliteration of the name "Eileen" in Chinese.
In this sentence, '艾琳' is used as a proper noun, specifically a name, referring to a person.
艾琳是我的好朋友。
Erin is my good friend.
Here, '艾琳' is used to refer to the subject of the sentence, expressing her preference for an activity.
艾琳喜欢弹钢琴。
Erin likes to play the piano.
In this case, '艾琳' denotes an individual participating in an activity with others, emphasizing her inclusion in the group during the event.