By stating you are having a hard time you are letting someone know you are having difficulty with something. This could be something physical or mental and something that could be overcome with effort.

表达你经历了一段艰难的时期，你让别人知道你正在某事上经历困难，这可能是身体上或精神上的，也可能是努力能克服的。

Here are some examples: 这里有一些例子： 

"I'm having a hard time writing."

 我写得不好。

"I'm having a hard time understanding you."

 我很难理解你。

"I'm having a hard time answering your question."

 我很难回答你的问题。

"I'm having a hard time downloading songs to my iPod."

 我很难把歌曲下载到我的iPod上。

"I'm having a hard time agreeing to the terms."

 我很难同意这些条款。

With the addition of an adverb you can express in more detail just how difficult something is for you.

加了副词，你就能更详细地表达对你来说有多困难了。

Here are some examples: 这里有一些例子： 

"I'm having an extremely hard time trusting you."

 要信任你对我来说太难了。

"I'm having an extremely hard time with my wife."

 我和我的妻子在一起度过了一段非常艰难的时光。

"I'm having a very hard time finding a job."

 找工作对我来说太难了。

"I'm having a very hard time finding parts for my car."

 要找到汽车零件对我来说太难了。