'I don't take it lightly.'

我不会轻率地对待这个问题。

'I don't take it lightly.

我不会轻率地对待这个问题。

Only return to secular melancholy take it lightly.

只剩下回归世俗的淡然惆怅。

It's an important job, you must not take it lightly.

这是一个重要的工作，你绝不能掉以轻心。

Competition is a part of my life, however, I will not take it lightly.

比赛只是我生活的一部分，但我不会草率对待。