past,过去(的).比如:in the past,communication among rural areas can be extremely hard.过去,边远地区的通讯极度困难. passed,pass的过去式.i passed the exam with ease.我轻松通过了考试. passed也用在被动语态中,如:The draft was passed by the Senate.参议院通过了这项草案.
pass是经过,passed是pass的过去、过去分词形式,past是副词、名词、介词和形容词。I will pass a house everyday.I passed a house yesterday.I remember my past.I walked past the house.The past years is my treasure.I miss the past years. A