相关单词同义词beginning, opportunity, threshold, conception, chance, preliminary, inauguratory, cracking, unwrapping, 近义词n. beginning, hole, opportunity, place, position adj. beginning, commencing, early, first反义词n.blockage, close, ending, finishadj.closing, ending临近词opera, opener, openings, opening up, opening at, opening for, opening way, opening cut, opening bit, opening day, opening die, opening lab相似词open-toed, open-top, opencast, opener, opening hours, opening night, opening time, openly, 返回 opening