His most famous example was riding a bicycle: we can do it but without quite knowing how.
他最著名的例举是骑自行车：我们能骑自行车，但不大知道自己是如何做到这一点的。
If I can manage to get hold of my fiance's saliva without him knowing, will you run it through your machines so I can surprise him with the 'gift' of his own data?
如果我可以在未婚夫不知情的条件下弄到他的唾液，你们能不能用机器对它进行分析，以便让我可以用他自己的数据送个他一个‘惊喜’？
Scarlett looked at her father in the fading light, and, without knowing why, she found it comforting to be in his presence.
如今在擦黑的微光中思嘉望着父亲，也不知为什么她觉得一到他面前心里就舒服了。
Without knowing about life on Mars, Mary couldn’t appreciate how important it was for Tom to accomplish his goal without help.
玛莉若不了解火星人的生活，就无法了解不靠她的帮忙而顺利达到目的地对汤姆是何等重要。
Then he asked if I could get him into a literacy program without his employer knowing about it.
随后他问我能否安排他参加读写教育计划，但不能告诉他的老板。
He served his patients well and, without even knowing it, he was free from concern over life and death.
他真诚服务病人，又在不知不觉中堪破了生死。
This young man slipped a watch into his pocket without the teacher's knowing it/being noticed by the teacher.
这个小伙子偷偷把一块表塞进口袋，没让老师看到。
He struck his forehead wildly — where, o where had he without knowing it achieved success?
他狂乱地敲着自己的前额——什么时候，呵，什么时候在他的不知不觉之中得到成功了呢？
That girl answered to his inward desires, to his secret hopes, to that sort of ideal of love which one cherishes in the depths of the heart, without knowing it.
这个女孩符合他的内心愿望、秘密期盼，符合那种内心深处不知不觉所怀有的爱情理想。
Without knowing more details about his case, such as the grade and stage of the tumor, it is hard to say.
不知道他的病例的更多细节，如肿瘤的阶段，这很难说。
The criminal tries to interfere with the computers in order to get them to transfer money to his computer without the bank or company knowing that it has been robbed.
罪犯尝试通过与计算机接触来达到不引起工作人员注意力的同时转移资金到自己账户的目的。
As she turned round to him, her hand fell naturally into his, and he stood holding it and smiling into her face with his peculiar, knowing, indulgent smile without a shadow of reproach in it.
当她转身向他，她的手，把他的自然下降，而他站在控股，并把她的脸，用他特有的微笑，知道，宽容的微笑没有责备也蒙上阴影。
When the train came in, Michael boarded it first and, without knowing it, dropped his ticket on the platform as he got in to the carriage.
火车进站后，米歇尔先上了车。他走进车厢时，不小心将自己的车票掉在了月台上。
After a while, the students get used to it, and without knowing, they are already singing harmoniously as the conductor wave his hands.
过了一会，同学们变习惯了。不知不觉中，他们跟着指挥的手势唱得是有声有色。
After a while, the students get used to it, and without knowing, they are already singing harmoniously as the conductor wave his hands.
过了一会，同学们变习惯了。不知不觉中，他们跟着指挥的手势唱得是有声有色。
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