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“我放单飞了!”你们知道什么是“放单飞”吗?我给你们说:放单飞是空军的一个术语,它的意思是说飞行员能自己开飞机了。没有放单飞的时候是
“Do you know what is ” let's fly? "I say to you: Placing a solo fly is a term for the Air Force, which means that the pilot can fly by himself. It's time not to fly