專列

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.

列 = 刂 + 歹 : Mnemonic symbol: archangel Gabriel, 加百列.

The apocalypse has come, and archangel Gabriel (列) came down from heaven with his list (列) of people who are accepted. In the elevator's bathroom (e4) he tells Li Qingzhao (li) that she's on his list, and he tells the wicked witch (歹) that she's not. The wicked witch freaks out and takes Li Qingzhao as her hostage holding a kitchen knife (刂) to Qingzhao's throat.