求翻译：4×400米接力，第一棒分道，运动员必须在自己跑道上完成，第二棒的前100米分道，从100米并道线开始，运动员可以串道，后两棒运动员都可以串道跑。是什么意思？

4 × 400 meter relay, the first bar lane, athletes must complete their own on the runway, the second lane bar first 100 meters, 100 meters from the starting line and said, athletes can string channel, after the two players can string sticks Road run.

4 x 400 m relay traffic separation schemes, the first professional baseball player, must be completed on the runway in their own rods, 2 100 meters before the Carnarvon Road Line, starting from 100 meters, and athletes can be series, while the latter two rods road athletes ran off can be a series.

4×400 rice relay, the first good skip road, the athlete must complete on oneself runway, the second stick first 100 meters skip roads, start from 100 meter and the route, the athlete may the cross-talk, the latter two good athletes all be possible the cross-talk to run.

4x400 meter relay, the first great traffic separation schemes, athletes must be complete on their own track, the second 100 m before the great traffic separation schemes, starting from the 100 meters and road line, players can cross talk, the latter two great athletes can cross talk from running.

4x400 meter relay, the first great traffic separation schemes, athletes must be complete on their own track, the second 100 m before the great traffic separation schemes, starting from the 100 meters and road line, players can cross talk, the latter two great athletes can cross talk from running.