The truth is sometimes difficult to get at.
有时真相很难查明。
It's sometimes difficult to tell who are the goodies and who are the baddies.
好人和坏人有时很难分清。
Choice, sometimes difficult, because it is the choice!
选择，有时候很艰难，因为它是选择！
The process I described above is sometimes difficult for me.
以上我写的这个过程有时候对我来说有些难。
Quality is sometimes difficult to determine immediately.
质量有时难以马上确定。
It's sometimes difficult for me to find what I'm looking for.
要找到我要找的东西有点困难。
Finally, it's sometimes difficult to know when the meal is over.
最后，有时很难知道当这顿饭就结束了。
It is sometimes difficult to get change without buying something.
有时候不买东西就想换零钱是很困难的。
It is sometimes difficult to know when to shake hands with Americans.
有些时候很难知道什么时候跟美国人握手。
She had heard that it was sometimes difficult to focus in diffuse light.
她听说过在漫射光下眼睛有时很难聚焦。
It is also sometimes difficult to decide what truly belongs behind the facade.
有时决定究竟什么是属于facade的，也是有困难的。
The truth is sometimes difficult to accept, because it sounds much better.
真相有时之所以难以被接受，是因为谎言听起来美好多了。
It is sometimes difficult to know whether the information is correct or not.
有时很难知道该信息是否正确。
First, it is sometimes difficult to separate the policy and scientific issues.
首先，有时很难区分政策和法律问题。
The path towards sustainable energy sources will be long and sometimes difficult.
通向可再生能源利用的道路是漫长的，有时是困难的。
It is sometimes difficult to tell the two apart without studying their behavior at length.
有时候不通过长时间研究他们的行为，很难将他们两个区分开。
Feelings are sometimes difficult to discover - and often even more difficult to acknowledge.
感觉有时难以发掘，且往往更难以确认。
Sometimes that standard is quite difficult, if not impossible, to achieve.
有时那个标准，即使并非不可能，也是很难达到的。
Sometimes the instructions are very simple but the furniture itself is difficult to build.
有时候说明书很简单，但是家具本身很难做。
Anyway, sometimes I can be difficult to find.
不管怎样，有时候我很难被找到。
Sometimes this is a very difficult task.
有时这是一项非常困难的任务。
Sometimes it can be difficult to deal with all of these new emotions.
有时，处理所有这些新的情绪是困难的。
That can be excruciatingly difficult sometimes.
这可能有时是很困难，有时。
Yet sometimes this can turn out to be difficult.
不过有时候这样做有些困难。
Sometimes that is difficult, but this morning I am prepared.
有时候，这很难，而今天，我已经准备妥了。
This sometimes is the most difficult thing about being a twin.
这一点可能是作为孪生兄弟最困难的地方。
It is very difficult to determine the cause of a problem that only occurs sometimes.
只有偶尔会发生的问题是很难确定问题的起因的。
Sometimes the pronunciation is difficult.
有时发音很难。
Sometimes the pronunciation is difficult.
有时发音很难。
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