Conrail
n. （美）联合铁路公司（美国一家接受联邦资助的私营公司）
🗣️ 情景例句
She was sick so the didn't attend her classes.
她生病了，所以没上学。
How long will it take you to repair it?
你要多久才能修好它？
By 12.01, those fluctuations will already have created small errors one foot away.
到12∶01时，那些波动就已经会在1英尺远的地方造成偏差。