The former Army physical training instructor works three days a week for a London plumbing firm and says he has trained for the April 13th race in his spare time.

马丁曾是一名陆军体能训练师，现在他每周在伦敦一家管道公司工作三天，他说他主要利用业余时间备战4月13号的比赛。

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Robert Cone, the chief of the Army's Training and Doctrine Command, said the services are developing new physical standards to make sure recruits are capable of meeting the physical demands of combat roles.

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