两位最老会员为新诺坎普开球，1957年球场建成时就曾见证（曾见证1957年落成的两位最年长会员为新诺坎普开球）
Translating and refining
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Translating and refining
I'm looking to translate the phrase about the two oldest members taking the ceremonial kick-off at the new Camp Nou and their experience witnessing the stadium's completion in 1957. I want to improve the grammar and proceed with both the Chinese refinement and the English translation. It might be useful to ask what else they'd like, and I could also think about creating some social media post variations while keeping everything concise.
想把这句补完整/润色，还是要英译呢？我先给几个版本，您挑风格：
中文标题（精炼）：
- 两位最年长会员为新诺坎普开球，1957年球场落成时亦曾见证揭幕
- 两位最老会员完成新诺坎普开球仪式，他们在1957年落成时也到场见证
- 巴萨两位最年长会员为焕新诺坎普开球，曾见证1957年落成
中文导语（约40字）：
- 巴塞罗那俱乐部邀请两位最年长会员担任新诺坎普的开球嘉宾。两人早在1957年球场落成时，便亲历了这一历史时刻。
英文翻译：
- The two oldest club members took the ceremonial kick-off at the new Camp Nou; they had also witnessed the stadium’s inauguration in 1957.
需要我写一篇100–150字的新闻简讯、社媒贴文版本，还是按某家媒体的口径统一用词（“诺坎普/坎普诺”）？