一级一级登上5层 楼，没有明显的气喘现象，健康状况不错；

One class enters one stage on 5 buildings, without apparent asthma phenomenon, healthy state is pretty good;

youdao

一级一级登上5层 楼，没有明显的气喘现象，健康状况不错；

One class enters one stage on 5 buildings, without apparent asthma phenomenon, healthy state is pretty good;

youdao