小心！树上有只大黄蜂，它会反复蜇人。

Be careful! There's a ___hornet in the tree that can sting repeatedly.

质疑她的决定就像捅了马蜂窝，她立刻变得咄咄逼人。

Questioning her decision was like stirring up a ___hornet's nest—she instantly turned aggressive.