Please keep quiet! I've something important to tell you.

请保持安静！我有要事告诉你。

If I want to make a complaint about something I'm not happy with, do I usually choose to keep quiet about this rather than admit it for fear of making the situation worse?

如果我想要对某一个自己感到不高兴的东西抱怨，我经常由于担心将情况弄地更糟糕，而选择而对此默不作声而不是去承认…它吗？