你好乙乙
[nĭ hăo yĭ yĭ]
The translation would be 'Hello Yi yi'. It's a cute informal greeting style, like saying hello but with added playfulness. 'Yi yi' sounds soft and childlike and might be a character in cartoons/games or an alias that has personal meanings like a close friend/pets name or a favorite anime/cartoon figure etc., reflecting an amiable and lighthearted personality.