敢gǎn
to dare, daring, (polite) may I venture数学shù xué
mathematics, mathematical文化wén huà
culture, civilization, cultural新鲜xīn xiān
fresh (experience, food etc)方便fāng biàn
convenient, to help out旧jiù
old, opposite: new 新, former明白míng bai
clear, obvious, unequivocal春chūn
spring (time), gay, joyful, youthful