From the discussion above, we can conclude that it is necessary and worthwhile for us to attend training classes because of its great importance.
从以上的讨论我们可以得出结论，参加培训课程对我们来说是必要并且值得的，因为它很重要。
As far as I am concerned, it is necessary to attend training classes for the following reasons.
在我看来，参加培训课程是必要的，原因如下。
As far as I am concerned, it is necessary to attend training classes for the following reasons.
在我看来，参加培训课程是必要的，原因如下。
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