As is known to us all, the Dragon Boat Festival is ____ ____ ____ famous ancient poet Qu Yuan.
18里面有____个6。
与朝廷和好年深蕃汉人户休养生息,人人安居不乐战斗。
——苏彻栾城集
请根据如图所示,判断甲、乙两船的运动情况( )