专营

专 = 二 + ㇉ + ㇏ : Let's say the expert is a scientist. Also, 专 reminds me a little bit of the wheelchair symbol. Thus I choose a scientist in a wheelchair as symbol for 专.

专 = 二 + ㇉ + ㇏ : In front of the anthill, the scientist and Julian Giant Squid are focused on one thing: Electrifying the wheelchair of the scientist. Deeply concentrated they connect a capacitor to the wheelchair, which indeed starts to move a little.

营 = 艹 + 冖 + 吕 : Maud Younger (y) built a camp (营) in the engine's kitchen ((e)ng2). She is sitting on a sheet of artificial lawn (艹) with a cooking top (冖) serving as her roof, and playing idly on her pitch pipe (吕).