on n guard 警惕 ; 站岗
Wall Patch-N-Guard 墙体修补程序
Green n guard bunker 果岭边缘的沙坑
pedestrian n guard rail 人行道栏杆
BEN N THE BODY GUARD 透过故事来讲述
N: he said that the attacker advances against Nineveh! You have to guard your fortresses, scout the road and prepare all your strength!
那鸿:“他说有人要袭击尼尼微,你们必须要守卫好城堡,派兵巡逻,做好一切战斗的准备。”
Therefore, if the total number of guards is n, no ready guard will go unselected for more than n successive selection operations, in the worst case.
所以,如果警卫的总数是 n,那么在最坏的情况下,就绪的警卫没获得选中的次数不会连续超过 n 次。
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