the river passes through the city请问passes through在这怎么解释?还有这里的pass为什么用复数?

the river passes through the city请问passes through在这怎么解释?还有这里的pass为什么用复数? 英语翻译Lanzhou is the only capital city that the Yellow River,the second longest river in China,passes through. The river becomes rapids as it passes across deep valleys.这句话有一处错误, The Mekong River passes through six countries as it makes its way to the South China Sea.上句子可不可以改成下句?The Mekong River passes through six countries,making its way to the South China Sea. Mary passes the Englesh Mike passes the ball_________John. He passes the passes the River the~river~ the river when someone passes you something on the The Mekong River passes through six countries as it makes its way to the South China Sea.请问上句中的as如何理解?含义?在句中的作用? Time passes quickly和The time passes quickly哪个对?为什么? the River of the riddles in English1.What is it that passes under the sun yet casts no shadow?2.If two is company, and there is a crowd.What are four and five?3.I am always lying over a river. People can cross the river on me without a boat. Who am I?4.What is everyo the river huangpu 还是the huangpu river? The river runs across the big river