For Lee and the other 700,000 high-school sophomores in the country, high-school studies have gotten even more intense.

对李和美国其他70万高中二年级学生来说，高中学习变得更加紧张。

youdao

For high school runners, I think that, on average, freshmen should put in anywhere from 20-30 miles a week, sophomores 30-40, juniors 40-50, and seniors should try to hit consistent 50 + mile weeks.

对于中学生跑步者，我认为，平均啊，一年级应该为每周20 -30英里，二年级30 -40，三年级40 -50，四年级应该尝试冲击恒定的每周50 +英里。

youdao

For high school runners, I think that, on average, freshmen should put in anywhere from 20-30 miles a week, sophomores 30-40, juniors 40-50, and seniors should try to hit consistent 50 + mile weeks.

对于中学生跑步者，我认为，平均啊，一年级应该为每周20 -30英里，二年级30 -40，三年级40 -50，四年级应该尝试冲击恒定的每周50 +英里。

youdao