past(a)
n. the time that has elapsed"forget the past"
同义词：past timesyesteryearyore
a earlier period in someone's life (especially one that they have reason to keep secret)"reporters dug into the candidate's past"
a verb tense that expresses actions or states in the past 同义词：past tense
adj. earlier than the present time; no longer current"time past"; " his youth is past"; " this past Thursday"; " the past year"
of a person who has held and relinquished a position or office 同义词：preceding(a)retiring(a)
a verb tense or other construction referring to events or states that existed at some previous time"past participle"
adv.so as to pass a given point"every hour a train goes past"
同义词：by