Xu Xian (xu) is delivering packets in the anthill's kitchen (an2). First he has to disable the alarm, so he uses the key (𠂉) to open a square (方) and pushes the button. Next he whirls around the room delivering his packets so quickly that he creates a whirlwind (旋), which is so fierce that the stick figure (正) gets blown all around the room.
工
=
二
+
丨
:
Mnemonic symbol: a steel beam, since 工 looks like the cross section of a steel beam. In front of the engine ((e)ng1), Gitta Giraffe (gu) is doing some hard work: She's stacking a capacitor (二) on a dinosaur bone (丨) on a capacitor (二). She's not very successful, but then she gets the idea to use steel beams (工) as support.