Fēi / lì / kè / sī / shì / wǒ / de / hǎo / péng / yǒu / wǒ / men / jīng / cháng / yì / qǐ / xué / xí菲力克斯是我的好朋友,我们经常一起学习。Felix is my good friend; we often study together.