Monorail
n. 单轨铁路\\n[化] 单轨梁
📖 牛津释义
monorail
n[U, C]
railway system in which trains travel along a track consisting of a single rail, usu placed high above the ground 单轨, 单轨铁路（通常指高架的）.
🗣️ 情景例句
I don't know for sure.
我不太清楚。
I ate noodles for lunch yesterday.
我昨天午饭吃的是面。
Excuse me, are you American?
你是美国人吗？