[ bǎiwúyīshī ] absolutely sure, no possibility of failure; cannot fail under any circumstances; can't possibly go wrong; not a chance of an error; no danger of anything going wrong; no risk at all; perfectly safe
Example Sentences:
1.
From that time he had watched them , and profiting by the moment when her lover had left her alone , had carried her off , and believed he at length had her in his power , when the ball , directed by the unerring skill of the young herdsman , had pierced his heart 从那时起，他就在暗中盯着他们，利用她的情人为旅客领路只剩她一人的时机，来抢她了，他以为终于把她弄到手了，却想不到青年牧人那百无一失的子弹射穿了他的心。
2.
The young girl trembled very much at hearing the stories ; but vampa reassured her with a smile , tapping the butt of his good fowling - piece , which threw its ball so well ; and if that did not restore her courage , he pointed to a crow , perched on some dead branch , took aim , touched the trigger , and the bird fell dead at the foot of the tree 那姑娘每听到讲这种故事就吓得发抖。但万帕却总是拍拍他那支百无一失的好猎枪的枪柄，用微笑来劝她放心，假如那还不能恢复她的勇气的话，他就瞄准一只落在一条枯枝上的乌鸦，扳动枪机，那只鸟就打死落到了树脚下。
