life cycle stage boundaries生命: life; vita; vivi-; bio-; -bi ...期: designated time阶段: stage; phase; period; gradat ...间: space in between; opening边界: boundary; frontier; border; ...下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:生命期阶段间边界，即可在微信中查询翻译
