校
=
交
+
木
:
In the aorta's bathroom, Marie Curie and Linus Pauling find their Christmas presents of a lifetime under a Christmas tree. They are given the gift of being able to go to school so that they can become accomplished scientists.
订
=
丁
+
讠
:
Dorothy Gale (di) finds an advertising column (讠) in the engine's bathroom ((e)ng4) displaying a nail (丁). She instantly calls the number to order (订) a really hard nail (丁) for her loose flange.