英语语法分析

NASA's astronauts used to be largely a corps of Air Force pilots with the near-perfect vision that goes along with being a young daredevil flyboy.

(美国宇航局)的宇航员们过去主要由一个空军飞行员的队伍组成，他们有着接近完美的视力，同时也是一批年轻的胆大妄为的飞机驾驶员。