But when I entered high school we have to solve a lot of math problems.
但当我上了高中我们必须解决很多问题。
When I had entered senior high school, we rented a house that located near my school and we moved there. He was there with us, too.
我升入高中之后，家里为我了上学近些，就在学校附近租了间房子，他也就跟我们一起搬到了那边。
But when I entered high school we have to solve a lot of math problems. We have to use a calculator. It makes my homework easier.
但上了高中后我们要解答许多数学题，也就不得不借助计算器了，做家庭作业也变得轻松了。
But when I entered high school we have to solve a lot of math problems. We have to use a calculator. It makes my homework easier.
但上了高中后我们要解答许多数学题，也就不得不借助计算器了，做家庭作业也变得轻松了。
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