1. Time spent on reconnaissance is seldom wasted. 花在侦察上的时间是不会白费的。
2. The squadron flew on a reconnaissance mission. 这支空军中队执行一项侦察任务。
3. The helicopter was returning from a reconnaissance mission. 那架直升机执行完一项侦察任务正在返回。
4. The US turned the YF-12 into a reconnaissance plane. 美国最终把YF-12改成了侦察机。
5. Since then, NASA, the National Reconnaissance Office and even Boeing have all launched and operated CubeSats. 从那时起,美国国家航空航天局、国家侦察局甚至波音公司都发射并运行了立方体卫星。