我只是笑了笑，试图对此轻描淡写。

I just laughed and tried to ___make ___light ___of it.

他们展现乐观的形象，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.

尽管情况严重，他总是对任何批评轻描淡写。

Despite the seriousness of the situation, he always ___makes ___light ___of any criticism.