不(ふ)注(ちゅう)意(い)な() fuchuuina運(うん)転(てん) untenは wa事(じ)故(こ) jikoの no原(げん)因(いん) gen'inとなる tonaru。 Careless driving causes accidents. Literal Careless driving [topic-は] accident's cause [result-と] becomes. ~の原因となる = 'becomes the cause of.' となる is slightly more formal than になる for expressing a result. A general-truth statement about driving safety. vehiclestransportationsafety and danger
不(ふ)注(ちゅう)意(い)な() fuchuuina運(うん)転(てん) untenは wa事(じ)故(こ) jikoの no原(げん)因(いん) gen'inとなる tonaru。 Careless driving causes accidents. Literal Careless driving [topic-は] accident's cause [result-と] becomes. ~の原因となる = 'becomes the cause of.' となる is slightly more formal than になる for expressing a result. A general-truth statement about driving safety. vehiclestransportationsafety and danger