Monorails
n. 单轨（铁路）( monorail的复数形式 ); 单轨索道
🗣️ 情景例句
Lots of interesting information about our family.
很多我们家有趣的东西呢
Never cast your pearls before swine.
不要把珍贵之物送给不识货的人；勿明珠暗投；勿对牛弹琴。
Precautions of this sort are necessary, for it is impossible to foretell the exact nature of the difficulties which will confront the pot-holer.
作出这样的准备是必要的，因为无法预见到洞穴探险者究竟会遇到什么性质的困难。