zhè / wèi / lǎo / shī / yòng / jiǎn / dān / de / yǔ / yán / jiě / shì / le / yí / gè / xuán / miào / de / zhé / xué / wèn / tí这位老师用简单的语言解释了一个玄妙的哲学问题。The teacher explained a profound philosophical question in simple language.