南天门应该近了, 由于山峡回环曲折,反而望不见了.Although the Southern Heavenly Gate was closer now, bends in the track hid it from sight.为了节约用水, 废水应当回环使用.In order to save water, waste water should be used circularly.获得多播数据报的本地回环设置.DD > Get the...

“回环”的拼音为：huí huán...

“回环”的英语可以翻译为：tortuous，winding ...