unless基本解释
prep,除…之外,同近
unless相关例句和用法Unless some extra money is found, the theatre will close..要是不能找到更多资金，剧院将要关闭。
unless英英释义除非，如果不英释中释conjused to say that something will happen or be true if something else does not happen or is not true
unless短语unless and until,直到…才.短语
