hi-fi
noun uk/ˈhaɪ.faɪ/ us/ˈhaɪ.faɪ/
[ C or U ]高保真音响设备
electronic equipment used to play recorded sound, especially music
I've just bought a new hi-fi. 我刚买了一套新的高保真音响设备。
hi-fi equipment 高保真音响设备
[ U ]（high fidelity的缩写）
abbreviation for high fidelity