T: 堂弟 S: 堂弟 [tang2 di4] = younger male cousin (the son of father's brother)
我堂弟每天騎腳踏車上學。
我堂弟每天骑脚踏车上学。
wo3 tang2 di4 mei3 tian1 qi2 jiao3 ta4 che1 shang4 xue2.
My cousin rides his bicycle to school every day.
https://www.learnwitholiver.com/chinese/daily-sentence-986