他经历了一段艰难的时期，然而他自己并不知道。
然而，面对毕业，他们却不知道如何选择。
However, with the approaching graduation they also face a difficult choice.
然而，我们并不知道，黑死病是如何被带到欧洲的。
We do not know, however, how the Black Death travelled to Europe.
然而，他可能并不知道这背后的物理原理。
He probably did not, however, know the physics behind it all.
然而这些女孩并不知道这些。
然而我要说，很多人其实并不知道字典是用作何用的。
I commented then that many people don't seem to know what dictionaries are for.
然而在逻辑层，代码并不知道物理层类型。
However, at the logical level, code is not aware of physical level types.
然而，那看起来好像你正在努力跑但是却不知道去哪儿。
Except... it feels like you're running hard and getting nowhere.
我不知道我认识了1000人，然而今年我的名单将突破这个数字。
I had no idea that I knew 1,000 people, yet my list will top that number this year.
然而，许多人可能并不知道它来自于openbsd开发人员。
However, many people might not know that it comes from OpenBSD developers.
然而，人类几乎不知道何为真理。
她几乎不知道该如何来回答他，然而她的怒气并没有气息。
She hardly knew how to answer this, and yet her wrath was not placated.
当时我不知道那件事，然而我后来知道了。
然而，人们甚至不知道它的全部，所以空荡荡的。
然而，你知不知道狗也可以在街上帮助人们出入安全。
However, do you know that dogs can also help people stay safe in the street?
然而，在职业环境下，你确实需要告诉别人你很优秀，否则他们永远都不知道。
However, in a professional setting, you do have to tell everyone that you're great or they might never know.
然而，除了我自己，谁也不知道。
然而，大部分的时间，他们只是不知道如何去做。
However, most of the time, they just do not know how to do it.
然而我可能往往不知道我的实际义务是什么。
More often than not, however, I may not kwon what my actual duty is.
然而他们一点也不知道皮皮有多厉害。
然而，我不知道自己在做什么。
然而，吸烟对人的健康是有害的，但有很多的青年人都不知道这一点。
However, smoking on human health is harmful, but many young people do not know that.
然而他却不知道露丝的生活方法。
然而，男人不知道这个秘密。
然而，面对毕业，他们却不知道如何选择。
However, with the a roaching graduation they also face a difficult choice.
然而，许多人不知道如何充分利用名片最佳的利用。
However, many people don't know how to make the best use of business CARDS.
然而很多人可能不知道记忆也是以这种方式来工作的。
Yet many people do not seem to know that memory works in the same way.
然而，我并不知道自己有很多的选择。
然而，我并不知道自己有很多的选择。
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