It 's 3 hours by plane from Beijing to Kumming帮助,帮助提问是
问题描述：
It 's 3 hours by plane from Beijing to Kumming
帮助,帮助
提问是
答
How long is it by plane from Beijing to Kumming?
答
从北京到昆明要三个小时航程。
答
乘坐飞机从北京到昆明需要3小时
回答要根据整个语境来看,这样一句话看不出来,你想想,是吗?
对时间提问：How long is it from Beijing to Kunming by plane?
答
从北京到昆明乘飞机要三小时