Debugging issues related to threading can be quite difficult.

调试与线程相关的问题可能相当困难。

The Aussie accent can be quite difficult to understand at first.

澳大利亚人的口音一开始可能很难理解。

The book is written in francais and is quite difficult to understand.

这本书是用法语写的，相当难懂。

B Only once. It’s quite difficult!

B 只打过一次。太难了!

Spanish verbs can be quite difficult.

西语的动词有时挺难的。

After no title it is quite difficult.

没有冠军是非常难过的。

Some customers are quite difficult to handle.

有些顾客很难对付。

This is quite difficult until you get used to it.

在你熟悉习惯以前，这相当不容易。

Being a college freshman can be quite difficult.

做一个大学新生会很困难。

It is quite difficult to find one's family history.

要找到一个人的家史是很难的。