autobahn的复数形式怎么拼写？

n.（德国、奥地利或瑞士的）高速公路...

The wide autobahn snaked through the Bavarian valley up into the mountains.一条宽宽的汽车道象条巨蟒沿着巴威利亚峡谷蜿蜒向上,通入深山.It's like drive Italian high powered car on German Autobahn.就像驱动器意大利高机动车在德语的高速公路上.Close to the autobahn and a ...

autobahn的音标：autobahn的英式发音音标为：['ɒtəʊba:n]autobahn的美式发音音标为：['ɔtəˌbɑn, 'aʊto-]...