But before they can trace their bikes or jump their ropes or toss their Frisbees, children understand they must first convince their friends to play along with them.
但是在他们比赛骑自行车，或跳绳，或仍飞盘之前，他们都知道要先说服小伙伴和他们一起玩。
2
The actual rotary speed during the stage jump input period could trace the given rotary speed and there was no error during the stabilized period.