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
Mr. Levine, Susan Stewart.
Levine先生， 我是Susan Stewart。
Did you get any sleep on the plane?
你在飞机上睡觉了吗？
How long have you been learning English?
你学英语有多久了？