爸爸：噢，酷。我要核实一下我们是否需要从环线换乘到一号线。

Dad: Oh, cool. I need to check if we need to change from the Loop line to the line 1?

youdao

爸爸：噢，酷。我要核实一下我们是否需要从环线换乘到一号线。

Dad: Oh, cool. I need to check if we need to change from the Loop line to the line 1?

youdao