They are climbing.请采纳
我们兄弟正在爬山Our brothers are climbing the mountain.
I see many people climbing the mountain.see sb doing 看见某人正在做某事
英文原文:They are climbing the mountain happily.英式音标:[e]  [klam]  [mantn] [hpl] . 美式音标:[e] [r] [klam]  [mantn] [hpli] .
爬山翻译是:climb mountains或Mountain climbing
is climbing. ..
你的笔友正在爬山吗?英文翻译:Is your pen pal climbing mountain?楼主问的是英语中的is疑问句造句吗?这个样应该可以.望采纳!!
be climbing up 正在向上爬 例如 They are climbing up the wall of the house 他们正往房屋的墙头上爬
The dog is climbing the mountain小狗正在爬山