low-level language
noun [ C ] computing specialized uk/ˌləʊ.lev.əl ˈlæŋ.ɡwɪdʒ/ us/ˌloʊ.lev.əl ˈlæŋ.ɡwɪdʒ/
(用来为计算机编程用的)低级语言
a language for writing computer programs that is similar to machine code (= a set of numbers that gives instructions to a computer)