“学时”造句

我敢说你上学时体育很棒。
I bet you were good at games when you were at school.

我在上大学时懒得要命。
I never did a stroke of work at college.

他谦逊地说，念中学时他曾经是游泳冠军。
He had been, he said modestly, swimming champ at high school.