For his father, it was a late-career promotion to brigadier and a command.
对他父亲来说，这是职业生涯后期向准将和指挥官的晋升。
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China's Olympic gold medal-winning hurdler Liu Xiang announced his retirement on Tuesday, ending a run in the sport marked by records and frustrated by successive late-career injuries.
Professionalism has turned the acquisition of a doctoral degree into a prerequisite for a successful academic career: as late as 1969 a third of American professors did not possess one.