研
=
开
+
石
:
Maud Younger is lacking salt for her ... . Luckily, there's a salt stone just inside the anthill's kitchen, so she uses a bottle opener to grind off some salt.
to beat / to hit / variant of 考[kao3] / to inspect / to test / to take an exam
考
=
⺹
+
丂
:
Karl Marx (k) has to take an exam (考) in the artoa's living room (ao3). It is very difficult for him because he has to wear a breathing mask (丂) due to the open fire, and he also has to wear a huge crown (⺹) which makes it difficult for him to see the exam papers.