相机：观众的眼睛。这里用的是 PerspectiveCamera（透视相机）。
Apple recently announced that it's hosting a "special experience" on March 4, and now Apple CEO Tim Cook is hyping up the event with a mysterious X post. The post includes a short video and the message, "A big week ahead. It all starts Monday morning! #AppleLaunch"
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What is 'Marathon' about?Marathon takes place on the planet Tau Ceti IV, where human colonists upload their consciousnesses to disposable cybernetic bodies, turning them into “Runners.” The Runners' job is to go out into Tau Ceti IV, scrounging up resources, artifacts, and data to bring back to their factions.