pesky

那只烦人的苍蝇一直在食物周围飞来飞去。

That ___pesky fly keeps hovering around the food.

这些烦人的蚊子让我整晚都睡不着。

Those ___pesky mosquitoes kept me awake all night.

这些讨厌的苍蝇总是围着食物转。

Those ___pesky flies keep hovering around the food.