退役上校

retired colonel

足球队的老队员退役了。

Old players on the football team have retired.

老队员相继退役，大力培养锻炼新手。

Senior team members are retiring in succession, and making great efforts to nurture and train new team members.

他退役后一直奋战在教练岗位上。

After he retired, he carried on the struggle in the coach's position.

许多产品过早地“退役”，需要它们的人，只得花钱买新的。

Many products are "retired" too early, and the people who need them have no option but to spend money on buying new ones.