常見例句雙語例句Now lets suppose that both trains are at the railroad station loading and unloading passengers and baggage.現在我們假設兩列火車都在火車站上在上下乘客或裝卸行李。Now let's suppose that both trains are at the railroad station loading and unloading passengers and baggage.現在我們假設兩列火車都在火車站上上下乘客或裝卸行李。 返回 railroad loading station