If you haven't looked at the homework problems, you might have difficulty with the homework quiz.

但如果你没有看过作业的问题，这个测试则将会很难。

麻省理工公开课 - 固态化学导论课程节选

When you have difficulty creating your own work, how do you deal with it?

如果创作碰到障碍了，你如何解决呢？

写作课程比较难 - SpeakingMax英语口语达人

We were going to have a clicker slide on how many bounced back but it looks like we're having a little technical difficulty with that.

发生背散射，球被弹回来了的,同学请你们站起来,让我算算。

麻省理工公开课 - 化学原理课程节选

A writer like Mary Astell can employ Milton's revolutionary rhetoric to advance a cause to which John Milton himself would of course ; have had difficulty subscribing; a dead Milton could exercise a social power that had nothing whatsoever to do with the living Milton's own social views.

一个像玛丽·阿斯苔这样的作者可以用弥尔顿的革命性语言,来推动一项事业，一项约翰·弥尔顿本人当然很难,赞同的事业;,死去的弥尔顿竟然能够操纵与生前弥尔顿的社会观点,毫无关系的社会力量。

耶鲁公开课 - 弥尔顿课程节选