yǎn / xí / kāi / shǐ / hòu / gè / bù / duì / àn / zhào / zǒng / zhǐ / huī / bù / de / mìng / lìng / xíng / dòng

演习开始后，各部队按照总指挥部的命令行动。

After the exercise began, all the units acted according to orders from the general headquarters.