1.And if you stir up a hornet's nest, you create trouble or problems.

stir up 激起；煽动；搅拌；唤起

Before painting, you should stir up the paint a bit.
漆油漆前，你得把油漆搅拌一下K+s2At78jT,^Ci#l]W。

They saw first a cloud of dust and then the car that was stirring it up.
他们先是看到一团尘土，接着就看到扬起尘土的那辆车)Z|qBie^dAU。

Y-d.E(xU_eT+iDOI5HbxaE(LW%A=5m87L+tbzuz8I 来源:可可英语 http://www.kekenet.com/broadcast/201504/368221.shtml