If you have followed a large amount of users in a short amount of time

在很短的时间内follow大量用户。

Not only is there a substantial financial commitment involved, but also there is a large amount of time and effort invested .

这必须要与客观的资金支持，还要有巨大的时间和努力的投入。

Finding a therapist and having to go through a trial and error process that takes up a large amount of time and is difficult as well.

看治疗师并进行反复治疗的过程需要大量时间且非常困难。

Is English such a difficult language that it really demands people to invest a large amount of time and energy before it is mastered ?

英语真的有这么难，需要人们投入大量的时间和精力才能掌握吗？

Deadlines that are weeks or months away are the hardest to manage. How can you organize a large amount of work across such a span of time to ensure the project is done on time?

最难处理的是那些几周或数月的限期，你如何在规定的时间范围内，安排好一大堆工作，以确保按时完成任务？

The author spent a large amount of time to collect supporting data and made the data verification, so as to accurately describe and analysis the situation of the industry.

文章用了大量数据论证以及深入的分析总结来准确描述了产业发展情况并得出了科学的、具有普遍意义的结论。

The research that development of homework auto-check software and the drawing platform is an extremely complicated project, need to invest a large amount of time and energy.

图形平台的开发和作业自动批改软件的研究是极其复杂工程，需要投入大量的时间和精力。