Since he was slow in running, he had to stay after school and also drop swimming in order to practice running.

既然他赛跑方面不行，就必须放学后留下来补课，以至于为了练习赛跑而放弃了游泳。

youdao

Since he was slow in running, he had to stay after school and also drop swimming in order to practice running.

既然他赛跑方面不行，就必须放学后留下来补课，以至于为了练习赛跑而放弃了游泳。

youdao