摸清情况再行动: look before you leaplookers-on see more than players
我们先把情况摸清楚再采取具体措施: let's feel out the situation first before we take any definite steps
底细: ins and outs; exact details; unapparent details; unknown background 短语和例子弄清...的底细 get to the bottom of...; 了解事情的底细 know the ins and outs of the matter