多层次社会保障体系 multi-level social security system
一次社会实践活动 A social practice activities ; A social practice
组织一次社会实践活动 a social practice activity
作一次社会调查 conduct a social survey
次社交圈 sub-worlds
第一次社会大分工 the First Great Social Division of Labor
次级社会化 secondary socialization
社会层次 societal level ; Social Levels
初次参加社交场合 debut
一次亲历社会的实践 A pro-social practice of society ; Immerse yourself in social practice
新闻社报道称，一名官员表示，下一次发射神舟飞船的准备工作正在进行中。
The news agency reported an official as saying that preparations were under way for the next Shenzhou launch.
此合作社有一间厨房，那里的天花板由学生志愿者打扫，大概每十来年才一次吧。
That co-op had a kitchen with a ceiling that had been cleaned by student volunteers probably every decade or so.
我看见欧文戏剧社宣布演出《终成眷属》时，兴趣极浓，主要是因为终于有一次演员可以自由地为了莎士比亚而表演莎士比亚了。唉呀！
When I saw "all's Well" announced for performance by the Irving Dramatic Club, I was highly interested, especially as the performers were free, for once, to play Shakespeare for Shakespeare's sake.
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