unerring aim正确的目标
Unerring party无过错方
unerring instinct准确的直觉
Unerring Sling必中投石索
Unerring Weapon精准武器
unerring a准确的
with unerring precision精确无误
unerring audit conclusion无错误的审计结论
an unerring memory准确无误的记忆力
ADJ（形容词） If you describe someone's judgment or ability as unerring, you mean that they are always correct and never mistaken. 从不出错的 [usu ADJ n]
She has an unerring instinct for people's weak spots.
她对人们的弱点有着从不出错的直觉。
ADV（副词） unerringly [ADV with v, ADV adj]
It was wonderful to watch her fingers moving deftly and unerringly.
看着她的手指灵巧又不出错地移动是很美妙的。