1. A 20,000-seat arena with a retractable roof is planned. 一个可容纳2万名观众、带伸缩顶棚的竞技场正在规划中。
2. This is an arena for gladiators only, for the Titans of the track. 这是个仅为勇士而且是仅为此行里的大力士勇士所设的竞技场。
3. He made it clear he had no intention of withdrawing from the political arena. 他明确表示他没有退出政治舞台的意图。
4. Our country needs more scientists who are willing to step out in the public arena and offer their opinions on important matters. 我们的国家需要更多的科学家，他们愿意走到公众舞台上，提供他们对重要事情的看法。
5. They're in concert at Wembley Arena. 他们在温布利体育馆演出。
