我只是笑了笑，试图对这件事轻描淡写。

I just laughed and tried to ___make ___light ___of it.

他们展现出乐观的形象，并对生活中的烦恼轻描淡写。

They project an optimistic image and ___make ___light ___of the troubles in life.

他总是对严重问题轻描淡写，这可能会误导人。

He always ___makes ___light ___of serious problems, which can be misleading.