History sometimes seems to teach us that all nations decay in the course of time.

历史有时似乎在教导我们，所有的国家最后都会衰败。

We need to focus more time on achieving goals in the course of time; and how these goals can be important!

在这段时间过程中，我们需要更多的时间专注与完成目标；并且这些目标如何重要。

In the course of time we finished the task.

经过一段时间后，我们终于完成任务了。

Do not become attached to anything that can destroy you in the course of time.

不要喜爱任何经过一定的时间可以摧毁你的事情。

In the course of time, most students have formed a mental laziness.

在时间的过程中，大多数学生已经形成了一种精神懒惰。