to moisten / to be infected by / to receive benefit or advantage through a contact / to touch
沾
=
占
+
氵
:
Someone is pouring out a bottle of water (氵) on the higher floors of the anthill, but James II of England (zh), standing on the street (an1), quickly puts up his yellow umbrella (占) so that only his umbrella is moistened (沾).
雨
=
下
+
丶
+
冂
:
It is raining inside of the space station, and because of zero gravity, it is raining in every direction. Yu the Great can't just hide under a ladder covered with petal leaves, she also has to tug herself in a few maps.