外交学院

外 = 夕 + 卜 : There's a hole in the wall of the airplane's bathroom (ai4), and from outside (外), a bat (夕) wants to enter. Willy Walrus (w) is very afraid of bats, so he does his best to hinder the bat from entering with a voodoo staff (卜).

交 = 亠 + 父 : Linus Pauling, a famous scientist with a beret. Father Time commands Linus Pauling to hand over his beret to him in front of the aorta, but Joan of Arc comes to his rescue.

学 = 小 + 冖 + 子 : Xu Xian wants to study scienceology and learn more about daisies. Just inside the elevator's kitchen, he put some daisies into a prize cup and covered them with a cooking top. He wants to study the growth rate of the daisies depending on the pH of the water in the prize cup.

院 = 完 + 阝 : The pope (阝) wants to join the cloister (寺院), but first he has to pass Yu the Great's (yu) test. He has to run as fast as he can from Vatikan City to the anthill's bathroom (an4), where the entrance to the cloister is. As he arrives at the bathroom huffing and puffing, Yu the Great is waving with a checkered flag.