Monorails
n. 单轨（铁路）( monorail的复数形式 ); 单轨索道
🗣️ 情景例句
They're so thoughtful.
他们真周到。
What do you want to do after graduation?
你毕业后想干什么？
I like television very much.How much does it cost?
我非常喜欢这台电视机。请问它多少钱？