half-moon glasses
noun [ plural ] UK uk/ˌhɑːf.muːn ˈɡlɑː.sɪz/ us/ˌhæf.muːn ˈɡlæs.ɪz/
半月形眼镜（半圆形镜片的眼镜，阅读时使用）
glasses with lenses shaped like half circles, used for reading
She peered over her half-moon glasses at me and asked why I was so late. 她透过半月形眼镜看着我，问我为什么来得这么迟。